Contact Us: Patent Cooperation Treaty (PCT)
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General or legal questions about the PCT
Tel: +41 22 338 8338
Monday to Friday 09:00–18:00 CET
- PCT Information Service
- For questions concerning a specific application you can also directly contact the authorized officer using the details indicated at the bottom of the PCT/IB forms.
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Questions about filing a PCT application using the RO/IB
Tel: +41 22 338 9222
Monday to Friday 09:00–18:00 CET
- RO/IB webpage
- Filing by hand-delivery is possible 24/7 at the reception of WIPO Access Center. See location
Questions about filing a PCT application via ePCT (WIPO IP Portal)
Tel: +41 22 338 9523
Monday to Friday 09:00–18:00 CET
- PCT eServices
- ePCT (WIPO IP Portal)
- ePCT Business Continuity Service
- Digital Access Service (DAS) for priority documents