Contact Us

Questions on the Patent Cooperation Treaty

• e-mail
• Telephone: (+41-22) 338 83 38 (opening hours from 09:00 - 18:00 Central European Time)
• Facsimile: (+41-22) 338 83 39

Questions relating to a specific international patent application: Please note that correspondence relating to specific international applications should be addressed to the PCT Operations Division: facsimile: (+41-22) 338 82 70 or the specific fax number indicated on the IB forms, or you can contact the "authorized officer" directly.

Access to published PCT documents is possible through PATENTSCOPE® Search Service

Questions on Patent Law

Questions on Electronic Filing (PCT-SAFE)

• e-mail
• Telephone: (+41-22) 338 95 23 (opening hours from 08:30 - 16:00 Central European Time)
• Facsimile: (+41-22) 338 80 40

Questions on Patent Search and Patent Data

Questions on Industrial Property Statistics

Feedback on the Patentscope^® Web site