United States patent and trademark office (USPTO)
PCT Helpdesk
| 8:30-5:30 US eastern time | Telephone: 571-272-4300 | Fax: 571-273-0419 |
International Bureau (IB) WIPO RESOURCES
PCT Resources
PCT Resources Page
Website: www.wipo.int/pct/en/
PCT Infoline
Telephone: +41 22 338 8338
Fax: +41 22 338 8339
Email: pct.infoline@wipo.int
PCT eServices (Safe & ePCT)
PCT Processing Team
Telephone: +41 22 338 92 22
Fax: +41 22 910 06 10
Email: ro.ib@wipo.int
