Contact Us: Patent Cooperation Treaty (PCT)

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General or legal questions about the PCT

Tel: +41 22 338 8338
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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
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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