| Abbreviation | Definition |
|---|---|
| PSIG | Patents and Standards Interest Group |
| PTAB | Patent Trial and Appeal Board |
| PTES | Patent Term Extensions |
| PTIS | Patent And Trademark Information Service |
| PTLL | Patent and Technology Library of Latvia |
| PTMD | Patent Technology Monitoring Division |
| PTO | Patent and Trademark Office |
| PTO | Patent Trademark Office |
| PTOS | Patent and Trademark Office Society |
| PTRC | Patent and Trademark Resource Center |
| PTRC | Patent and Trademark Resource Centers |
| PTRC | Patent Trademark Resource Center |
| PUPA | Published Unexamined Patent Application |
| SPL | Substantive Patent Law |
| SPLH | Substantive Patent Law Harmonisation |
| SPLT | Substantive Patent Law Treaty |
| SPTO | Spanish Patent And Trademark Office |
| SPTO | Spanish Patent Trademark Office |
| TARR | Trademark Application and Registration Retrieval |
| TARR | Trademark Applications and Registrations Retrieval |