| Year | Number of Countries by Treaty |
|---|
| WIPO Convention | 185 |
| Paris Convention | 174 |
| Berne Convention | 165 |
| Patent Cooperation Treaty | 144 |
| Rome Convention | 91 |
| WIPO Copyright Treaty | 88 |
| WIPO Performances and Phonograms Treaty | 88 |
| Madrid Protocol | 83 |
| Nice Agreement | 83 |
| Phonograms Convention | 77 |
| Budapest Treaty | 75 |
| UPOV Convention | 69 |
| Strasbourg Agreement | 62 |
| Hague Agreement | 58 |
| Madrid Agreement (Marks) | 56 |
| Locarno Agreement | 52 |
| Nairobi Treaty | 50 |
| Trademark Law Treaty | 49 |
| Brussels Convention | 35 |
| Madrid Agreement (Indications of Source) | 35 |
| Vienna Agreement | 31 |
| Patent Law Treaty | 30 |
| Lisbon Agreement | 27 |
| Singapore Treaty | 24 |
