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Sign up | All WIPO newslettersInternational Phase Introduction  |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| AE | United Arab Emirates | X | IB | - | - | - | X | - | X | AE |
| AG | Antigua and Barbuda | X | IB | - | - | - | X | - | X | AG |
| AL | Albania | X | X | - | - | - | X | X | X | AL |
| AM | Armenia | X | X | - | - | - | X | - | X | AM |
| AO | Angola | X | IB | - | - | - | X | - | X | AO |
| AP | African Regional Intellectual Property Organization | X | X | - | - | - | X | X | X | AP |
| AT | Austria | X | X | X | X | X | X | X | X | AT |
| AU | Australia | X | X | X | - | X | X | X | X | AU |
| AZ | Azerbaijan | X | X | - | - | - | X | - | X | AZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| BA | Bosnia & Herzegovina | X | X | - | - | - | X | X | X | BA |
| BB | Barbados | X | IB | - | - | - | X | - | X | BB |
| BE | Belgium | X | EP | - | - | - | X | - | EP | BE |
| BF | Burkina Faso | X | OA | - | - | - | X | - | OA | BF |
| BG | Bulgaria | X | X | - | - | - | X | X | X | BG |
| BH | Bahrain | X | X | - | - | - | X | - | X | BH |
| BJ | Benin | X | OA | - | - | - | X | - | OA | BJ |
| BN | Brunei Darussalam | X | X | - | - | - | X | X | X | BN |
| BR | Brazil | X | X | X | X | X | X | X | BR | |
| BW | Botswana | X | X | - | - | - | X | - | X | BW |
| BY | Belarus | X | X | - | - | - | X | X | X | BY |
| BZ | Belize | X | X | - | - | - | X | - | X | BZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| CA | Canada | X | X | X | - | X | X | X | X | CA |
| CF | Central African Republic | X | OA | - | - | - | X | - | OA | CF |
| CG | Congo | X | OA | - | - | - | X | - | OA | CG |
| CH | Switzerland | X | X | - | - | - | X | X | X | CH |
| CI | Côte d'Ivoire | X | OA | - | - | - | X | - | OA | CI |
| CL | Chile | X | X | X | - | X | X | X | X | CL |
| CM | Cameroon | X | OA | - | - | - | X | - | OA | CM |
| CN | China | X | X | X | - | X | X | X | X | CN |
| CO | Colombia | X | X | - | - | - | X | X | X | CO |
| CR | Costa Rica | X | X | - | - | - | X | - | X | CR |
| CU | Cuba | X | X | - | - | - | X | X | X | CU |
| CY | Cyprus | X | X | - | - | - | X | - | EP | CY |
| CZ | Czechia | X | X | - | - | - | X | X | X | CZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| DE | Germany | X | X | - | - | - | X | X | X | DE |
| DJ | Djibouti | X | X | - | - | - | X | X | X | DJ |
| DK | Denmark | X | X | - | - | - | X | X | X | DK |
| DM | Dominica | X | X | - | - | - | X | - | X | DM |
| DO | Dominican Republic | X | X | - | - | - | X | - | X | DO |
| DZ | Algeria | X | X | - | - | - | X | - | X | DZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| EA | Eurasian Patent Organization | X | X | - | - | - | X | X | X | EA |
| EC | Ecuador | X | X | - | - | - | X | X | X | EC |
| EE | Estonia | X | X | - | - | - | X | - | X | EE |
| EG | Egypt | X | X | X | - | X | X | - | X | EG |
| EP | European Patent Organisation | X | X | X | X | X | X | X | X | EP |
| ES | Spain | X | X | X | - | X | X | X | X | ES |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| FI | Finland | X | X | X | X | X | X | X | X | FI |
| FR | France | X | X | - | - | - | X | - | EP | FR |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| GA | Gabon | X | OA | - | - | - | X | - | OA | GA |
| GB | United Kingdom | X | X | - | - | - | X | X | X | GB |
| GD | Grenada | X | X | - | - | - | X | - | X | GD |
| GE | Georgia | X | X | - | - | - | X | X | X | GE |
| GH | Ghana | X | X | - | - | - | X | - | X | GH |
| GM | Gambia | X | AP | - | - | - | X | - | X | GM |
| GN | Guinea | X | OA | - | - | - | X | - | OA | GN |
| GQ | Equatorial Guinea | X | OA | - | - | - | X | - | OA | GQ |
| GR | Greece | X | X | - | - | - | X | - | EP | GR |
| GT | Guatemala | X | X | - | - | - | X | X | X | GT |
| GW | Guinea-Bissau | X | OA | - | - | - | X | - | OA | GW |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| HN | Honduras | X | X | - | - | - | X | X | X | HN |
| HR | Croatia | X | X | - | - | - | X | X | X | HR |
| HU | Hungary | X | X | - | - | - | X | X | X | HU |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| IB | World Intellectual Property Organization | X | X | - | - | - | X | - | - | IB |
| ID | Indonesia | X | X | - | - | - | X | X | X | ID |
| IE | Ireland | X | X | - | - | - | X | - | EP | IE |
| IL | Israel | X | X | X | - | X | X | X | X | IL |
| IN | India | X | X | X | - | X | X | X | X | IN |
| IR | Iran (Islamic Republic of) | X | X | - | - | - | X | - | X | IR |
| IS | Iceland | X | X | - | - | - | X | X | X | IS |
| IT | Italy | X | X | - | - | - | X | - | EP | IT |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| JO | Jordan | X | X | - | - | - | X | X | X | JO |
| JP | Japan | X | X | X | - | X | X | X | X | JP |
| International Phase Introduction |
National Phase Introduction |
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|---|---|---|---|---|---|---|---|---|---|---|
| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| KE | Kenya | X | X | - | - | - | X | X | X | KE |
| KG | Kyrgyzstan | X | X | - | - | - | X | - | X | KG |
| KH | Cambodia | X | X | - | - | - | X | - | X | KH |
| KM | Comoros | X | OA | - | - | - | X | - | OA | KM |
| KN | Saint Kitts and Nevis | X | X | - | - | - | X | - | X | KN |
| KP | Democratic People's Republic of Korea | X | X | - | - | - | X | - | X | KP |
| KR | Republic of Korea | X | X | X | - | X | X | X | X | KR |
| KW | Kuwait | X | IB | - | - | - | X | - | X | KW |
| KZ | Kazakhstan | X | X | - | - | - | X | X | X | KZ |
| International Phase Introduction |
National Phase Introduction |
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|---|---|---|---|---|---|---|---|---|---|---|
| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| LA | Lao People's Democratic Republic | X | IB | - | - | - | X | - | X | LA |
| LC | Saint Lucia | X | IB | - | - | - | X | - | X | LC |
| LI | Liechtenstein | X | CH | - | - | - | X | - | CH | LI |
| LK | Sri Lanka | X | IB | - | - | - | X | - | X | LK |
| LR | Liberia | X | X | - | - | - | X | - | X | LR |
| LS | Lesotho | X | X | - | - | - | X | - | X | LS |
| LT | Lithuania | X | X | - | - | - | X | X | EP | LT |
| LU | Luxembourg | X | X | - | - | - | X | X | X | LU |
| LV | Latvia | X | X | - | - | - | X | X | EP | LV |
| LY | Libya | X | X | - | - | - | X | - | X | LY |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| MA | Morocco | X | X | - | - | - | X | X | X | MA |
| MC | Monaco | X | EP | - | - | - | X | - | EP | MC |
| MD | Republic of Moldova | X | X | - | - | - | X | X | X | MD |
| ME | Montenegro | X | X | - | - | - | X | - | X | ME |
| MG | Madagascar | X | IB | - | - | - | X | - | X | MG |
| MK | North Macedonia | X | X | - | - | - | X | X | X | MK |
| ML | Mali | X | OA | - | - | - | X | - | OA | ML |
| MN | Mongolia | X | X | - | - | - | X | - | X | MN |
| MR | Mauritania | X | OA | - | - | - | X | - | OA | MR |
| MT | Malta | X | X | - | - | - | X | - | EP | MT |
| MW | Malawi | X | X | - | - | - | X | - | X | MW |
| MX | Mexico | X | X | - | - | - | X | X | X | MX |
| MY | Malaysia | X | X | - | - | - | X | - | X | MY |
| MZ | Mozambique | X | AP | - | - | - | X | - | X | MZ |
| International Phase Introduction |
National Phase Introduction |
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|---|---|---|---|---|---|---|---|---|---|---|
| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| NA | Namibia | X | AP | - | - | - | X | - | X | NA |
| NE | Niger | X | OA | - | - | - | X | - | OA | NE |
| NG | Nigeria | X | IB | - | - | - | X | - | X | NG |
| NI | Nicaragua | X | X | - | - | - | X | X | X | NI |
| NL | Netherlands | X | X | - | - | - | X | - | EP | NL |
| NO | Norway | X | X | - | - | - | X | X | X | NO |
| NZ | New Zealand | X | X | - | - | - | X | X | X | NZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| OA | African Intellectual Property Organization | X | X | - | - | - | X | - | X | OA |
| OM | Oman | X | X | - | - | - | X | X | X | OM |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| PA | Panama | X | X | - | - | - | X | X | X | PA |
| PE | Peru | X | X | - | - | - | X | X | X | PE |
| PG | Papua New Guinea | X | X | - | - | - | X | - | X | PG |
| PH | Philippines | X | X | X | - | X | X | X | X | PH |
| PL | Poland | X | X | - | - | - | X | X | X | PL |
| PT | Portugal | X | X | - | - | - | X | X | X | PT |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| QA | Qatar | X | X | - | - | - | X | X | X | QA |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| RO | Romania | X | X | - | - | - | X | X | X | RO |
| RS | Serbia | X | X | - | - | - | X | X | X | RS |
| RU | Russian Federation | X | X | X | X | X | X | X | X | RU |
| RW | Rwanda | X | X | - | - | - | X | - | X | RW |
| International Phase Introduction |
National Phase Introduction |
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|---|---|---|---|---|---|---|---|---|---|---|
| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| SA | Saudi Arabia | X | X | - | - | - | X | - | X | SA |
| SC | Seychelles | X | X | - | - | - | X | - | X | SC |
| SD | Sudan | X | X | - | - | - | X | - | X | SD |
| SE | Sweden | X | X | X | X | X | X | X | X | SE |
| SG | Singapore | X | X | X | X | X | X | X | X | SG |
| SI | Slovenia | X | X | - | - | - | X | - | EP | SI |
| SK | Slovakia | X | X | - | - | - | X | X | X | SK |
| SL | Sierra Leone | X | AP | - | - | - | X | - | X | SL |
| SM | San Marino | X | X | - | - | - | X | - | X | SM |
| SN | Senegal | X | OA | - | - | - | X | - | OA | SN |
| ST | Sao Tome and Principe | X | AP | - | - | - | X | - | X | ST |
| SV | El Salvador | X | X | - | - | - | X | X | X | SV |
| SY | Syrian Arab Republic | X | X | - | - | - | X | - | X | SY |
| SZ | Eswatini | X | AP | - | - | - | X | - | AP | SZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| TD | Chad | X | OA | - | - | - | X | - | OA | TD |
| TG | Togo | X | OA | - | - | - | X | - | OA | TG |
| TH | Thailand | X | X | - | - | - | X | - | X | TH |
| TJ | Tajikistan | X | X | - | - | - | X | X | X | TJ |
| TM | Turkmenistan | X | X | - | - | - | X | X | X | TM |
| TN | Tunisia | X | X | - | - | - | X | - | X | TN |
| TR | Turkey | X | X | X | X | X | X | X | X | TR |
| TT | Trinidad and Tobago | X | X | - | - | - | X | - | X | TT |
| TZ | United Republic of Tanzania | X | AP | - | - | - | X | - | X | TZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| UA | Ukraine | X | X | X | X | X | X | X | X | UA |
| UG | Uganda | X | X | - | - | - | X | X | X | UG |
| US | United States of America | X | X | X | - | X | X | X | X | US |
| UZ | Uzbekistan | X | X | - | - | - | X | - | X | UZ |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| VC | Saint Vincent and the Grenadines | X | IB | - | - | - | X | - | X | VC |
| VN | Viet Nam | X | X | - | - | - | X | - | X | VN |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| XN | Nordic Patent Institute | X | - | X | X | X | X | - | - | XN |
| XV | Visegrad Patent Institute | X | - | X | X | X | X | - | - | XV |
| International Phase Introduction |
National Phase Introduction |
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| Two-Letter Code plus Country (Annex A ) or Organization |
General Information | Receiving Offices | International Searching Authorities (ISA) | ISA (Supplementary Search) |
International Preliminary Examining Authorities | Country Names and Two-Letter Codes | Deposits of Biological Material | National Chapter | Code | |
| Annex B | Annex C | Annex D | Annex SISA | Annex E | Annex K | Annex L | Annex | |||
| ZA | South Africa | X | X | - | - | - | X | X | X | ZA |
| ZM | Zambia | X | X | - | - | - | X | - | X | ZM |
| ZW | Zimbabwe | X | X | - | - | - | X | - | X | ZW |