About Intellectual Property IP Training IP Outreach IP for… IP and... IP in... Patent & Technology Information Trademark Information Industrial Design Information Geographical Indication Information Plant Variety Information (UPOV) IP Laws, Treaties & Judgements IP Resources IP Reports Patent Protection Trademark Protection Industrial Design Protection Geographical Indication Protection Plant Variety Protection (UPOV) IP Dispute Resolution IP Office Business Solutions Paying for IP Services Negotiation & Decision-Making Development Cooperation Innovation Support Public-Private Partnerships The Organization Working with WIPO Accountability Patents Trademarks Industrial Designs Geographical Indications Copyright Trade Secrets WIPO Academy Workshops & Seminars World IP Day WIPO Magazine Raising Awareness Case Studies & Success Stories IP News WIPO Awards Business Universities Indigenous Peoples Judiciaries Genetic Resources, Traditional Knowledge and Traditional Cultural Expressions Economics Gender Equality Global Health Climate Change Competition Policy Sustainable Development Goals Enforcement Frontier Technologies Mobile Applications Sports Tourism PATENTSCOPE Patent Analytics International Patent Classification ARDI – Research for Innovation ASPI – Specialized Patent Information Global Brand Database Madrid Monitor Article 6ter Express Database Nice Classification Vienna Classification Global Design Database International Designs Bulletin Hague Express Database Locarno Classification Lisbon Express Database Global Brand Database for GIs PLUTO Plant Variety Database GENIE Database WIPO-Administered Treaties WIPO Lex - IP Laws, Treaties & Judgments WIPO Standards IP Statistics WIPO Pearl (Terminology) WIPO Publications Country IP Profiles WIPO Knowledge Center WIPO Technology Trends Global Innovation Index World Intellectual Property Report PCT – The International Patent System ePCT Budapest – The International Microorganism Deposit System Madrid – The International Trademark System eMadrid Article 6ter (armorial bearings, flags, state emblems) Hague – The International Design System eHague Lisbon – The International System of Appellations of Origin and Geographical Indications eLisbon UPOV PRISMA Mediation Arbitration Expert Determination Domain Name Disputes Centralized Access to Search and Examination (CASE) Digital Access Service (DAS) WIPO Pay Current Account at WIPO WIPO Assemblies Standing Committees Calendar of Meetings WIPO Official Documents Development Agenda Technical Assistance IP Training Institutions COVID-19 Support National IP Strategies Policy & Legislative Advice Cooperation Hub Technology and Innovation Support Centers (TISC) Technology Transfer Inventor Assistance Program WIPO GREEN WIPO's Pat-INFORMED Accessible Books Consortium WIPO for Creators WIPO ALERT Member States Observers Director General Activities by Unit External Offices Job Vacancies Procurement Results & Budget Financial Reporting Oversight

The PCT Applicant’s Guide

The PCT Applicant’s Guide is updated virtually every week with information received from PCT Contracting States and Offices. 

It contains two general parts entitled “Introduction to the International Phase” and “Introduction to the National Phase” respectively, and the various Annexes concerning all Contracting States and Offices divided according to the functions of the Offices. You may navigate through the table and click the respective icon “X” to access information about a particular State or Office acting in a specific capacity.

Until automatic searching and printing tools are added, you can:

  • search any part or profile of the eGuide using the “Ctrl + F” shortcut, and
  • print by using “Ctrl + P” or the print functionality of your Web browser. All supported browsers will include the ability to “print to PDF”

Email updates

PCT Guide Updates – Updates and revisions to the PCT Applicant's Guide. Weekly.

Sign up | All WIPO newsletters
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
AE United Arab Emirates X X

X

AE
AG Antigua and Barbuda X X

X

AG
AL Albania X X X

X

AL
AM Armenia X X

X

AM
AO Angola X

X

X

AO
AP African Regional Intellectual Property Organization X

X

X

X

AP
AT Austria X

X

X

X

X

X

X

AT
AU Australia X

X

X

X

X

X

AU
AZ Azerbaijan X

X

X

AZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
BA Bosnia & Herzegovina

X

X

X

X

BA
BB Barbados

X

X

X

BB
BE Belgium

X

X

BE
BF Burkina Faso

X

X

BF
BG Bulgaria

X

X

X

X

BG
BH Bahrain

X

X

X

BH
BJ Benin

X

X

BJ
BN Brunei Darussalam

X

X

X

X

BN
BR Brazil

X

X

X X

X

X

BR
BW Botswana

X

X

X

BW
BY Belarus

X

X

X

X

BY
BZ Belize

X

X

X

BZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
CA Canada

X

X

X X X

X

CA
CF Central African Republic

X

X

CF
CG Congo

X

X

CG
CH Switzerland

X

X

X

X

CH
CI Côte d'Ivoire

X

X

CI
CL Chile

X

X

X X X

X

CL
CM Cameroon

X

X

CM
CN China

X

X

X X X

X

CN
CO Colombia

X

X

X

X

CO
CR Costa Rica

X

X

X

CR
CU Cuba

X

X

X

X

CU
CV Cabo Verde

X

X

X

CV
CY Cyprus

X

X

CY
CZ Czechia

X

X

X

X

CZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
DE Germany

X

X

X

X

DE
DJ Djibouti

X

X

X

X

DJ
DK Denmark

X

X

X

X

DK
DM Dominica

X

X

X

DM
DO Dominican Republic

X

X

X

X

DO
DZ Algeria

X

X

X

DZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
EA Eurasian Patent Organization

X

X

X

X

X

X

EA

EC Ecuador

X

X

X

X

EC
EE Estonia

X

X

X

EE
EG Egypt

X

X

X

X

X

EG
EP European Patent Organisation

X

X

X

X

X

X

X

EP
ES Spain

X

X

X

X

X

X

ES
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
FI Finland

X

X

X

X

X

X

X

FI
FR France

X

X

FR
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
GA Gabon

X

X

GA
GB United Kingdom

X

X

X

X

GB
GD Grenada

X

X

X

GD
GE Georgia

X

X

X

X

GE
GH Ghana

X

X

X

GH
GM Gambia

X

X

X

GM
GN Guinea

X

X

GN
GQ Equatorial Guinea

X

X

GQ
GR Greece

X

X

GR
GT Guatemala

X

X

X

X

GT
GW Guinea-Bissau

X

X

GW
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
HN Honduras

X

X

X

X

HN
HR Croatia

X

X

X

X

HR
HU Hungary

X

X

X

X

HU
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
IB World Intellectual Property Organization

X

X

IB
ID Indonesia

X

X

X

X

ID
IE Ireland

X

X

IE
IL Israel

X

X

X

X

X

X

IL
IN India

X

X

X

X

X

X

IN
IQ Iraq

X

X

X

IQ
IR Iran (Islamic Republic of)

X

X

X

IR
IS Iceland

X

X

X

X

IS
IT Italy

X

X

X

X

IT
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
JM Jamaica

X

X

X

JM
JO Jordan

X

X

X

X

JO
JP Japan

X

X

X X

X

X

JP
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
KE Kenya

X

X

X

X

KE
KG Kyrgyzstan

X

X

X

KG
KH Cambodia

X

X

X

KH
KM Comoros

X

X

KM
KN Saint Kitts and Nevis

X

X

X

KN
KP Democratic People's Republic of Korea

X

X

X

KP
KR Republic of Korea

X

X

X

X

X

X

KR
KW Kuwait

X

X

X

KW
KZ Kazakhstan

X

X

X

X

KZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
LA Lao People's Democratic Republic

X

X

X

LA
LC Saint Lucia

X

X

X

LC
LI Liechtenstein

X

X

LI
LK Sri Lanka

X

X

X

LK
LR Liberia

X

X

X

LR
LS Lesotho

X

X

X

LS
LT Lithuania

X

X

X

LT
LU Luxembourg

X

X

X

X

LU
LV Latvia

X

X

X

LV
LY Libya

X

X

X

LY
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
MA Morocco

X

X

X

X

MA
MC Monaco

X

X

MC
MD Republic of Moldova

X

X

X

X

MD
ME Montenegro

X

X

ME
MG Madagascar

X

X

X

MG
MK North Macedonia

X

X

X

X

MK
ML Mali

X

X

ML
MN Mongolia

X

X

X

MN
MR Mauritania

X

X

MR
MT Malta

X

X

MT
MU Mauritius

X

X

X

X

MU
MW Malawi

X

X

X

MW
MX Mexico

X

X

X

X

MX
MY Malaysia

X

X

X

X

MY
MZ Mozambique

X

X

X

MZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
NA Namibia

X

X

X

NA
NE Niger

X

X

NE
NG Nigeria

X

X

X

NG
NI Nicaragua

X

X

X

X

NI
NL Netherlands (Kingdom of the)

X

X

NL
NO Norway

X

X

X

X

NO
NZ New Zealand

X

X

X

X

NZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
OA African Intellectual Property Organization

X

X

X

OA
OM Oman

X

X

X

X

OM
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
PA Panama

X

X

X

X

PA
PE Peru

X

X

X

X

PE
PG Papua New Guinea

X

X

X

PG
PH Philippines

X

X

X

X

X

X

PH
PL Poland

X

X

X

X

PL
PT Portugal

X

X

X

X

PT
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
QA Qatar

X

X

X

X

QA
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
RO Romania

X

X

X

X

RO
RS Serbia

X

X

X

X

RS
RU Russian Federation

X

X

X

X

X

X

X

RU
RW Rwanda

X

X

X

RW
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
SA Saudi Arabia

X

X

X

SA
SC Seychelles

X

X

X

SC
SD Sudan

X

X

X

SD
SE Sweden

X

X

X

X

X

X

X

SE
SG Singapore

X

X

X

X

X

X

X

SG
SI Slovenia

X

X

SI
SK Slovakia

X

X

X

X

SK
SL Sierra Leone

X

X

X

SL
SM San Marino

X

X

SM
SN Senegal

X

X

SN
ST Sao Tome and Principe

X

X

X

ST
SV El Salvador

X

X

X

X

SV
SY Syrian Arab Republic

X

X

X

SY
SZ Eswatini

X

X

SZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
TD Chad

X

X

TD
TG Togo

X

X

TG
TH Thailand

X

X

X

TH
TJ Tajikistan

X

X

X

X

TJ
TM Turkmenistan

X

X

X

X

TM
TN Tunisia

X

X

X

TN
TR Türkiye

X

X

X

X

X

X

X

TR
TT Trinidad and Tobago

X

X

X

TT
TZ United Republic of Tanzania

X

X

X

TZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
UA Ukraine

X

X

X

X

X

X

X

UA
UG Uganda

X

X

X

X

UG
US United States of America

X

X

X

X

X

X

US
UZ Uzbekistan

X

X

X

UZ
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
VC Saint Vincent and the Grenadines

X

X

X

VC
VN Viet Nam

X

X

X

VN
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
WS Samoa

X

X

X

WS
International Phase National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E 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 National Phase
Two-Letter Code plus Country or Organization General Information Receiving Offices International Searching Authorities (ISA) ISA
(Supplementary Search)
International Preliminary Examining Authorities Deposits of Biological Material National Chapter Code
Annex B Annex C Annex D Annex SISA Annex E Annex L Annex
ZA South Africa

X

X

X

X

ZA
ZM Zambia

X

X

X

ZM
ZW Zimbabwe

X

X

X

ZW