Contact Us: PCT – The International Patent System

For best results, please complete this form in Chrome, Firefox or Safari.

Mandatory fields are marked as (required).

Topic (required)

Sub-topic

Question (required)

Attachment

(File size limited to 2 MB - Accepted formats: pdf, txt, jpeg, jpg, gif, png)

First name

Last name

Company/Organization

Phone number

E-mail address (required)

Verification (required)

If you cannot tick the verification box, please ensure you are using Chrome, Firefox or Safari. In Internet Explorer the box may not function correctly.

Additional information

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 directly contact the authorized officer using the details indicated at the bottom of the IB form.

WARNING: Requests for payment of fees

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

In the case of filing by hand-delivery, a letter box is available 24 hours a day, seven days a week.

Questions about e-filing

Tel: +41 22 338 9523 (Monday to Friday 09:00–18:00 CET)