Contact Us

Your questions and comments are important to us and we will address them as quickly as possible.

Frequently Asked Questions

We have lots of information already available online that may be exactly what you need. We invite you to consult our FAQs on:

Other contact information

General and Technical Enquiries

Our Client Service Centre is your central point of contact for general and technical enquiries. See below for contact information for official correspondence.

Information Officers are available during office hours, Monday to Friday, from 8:30 a.m. to 5:00 p.m. (EST), with the exception of statutory holidays. We strive to provide timely responses to enquiries in accordance with our service standards.

Call
Web
  • 1-866-997-1936
    (toll-free from anywhere in Canada and the United States)
  • 819-934-0544
    (international calls only)
  • 1-866-442-2476
    (TTY: voice calls cannot be received on this line)
Visit
Fax

CIPO Client Service Centre
Place du Portage I
50 Victoria St., Room C-229
Gatineau, Quebec K1A 0C9

Office Contacts for Specific Enquiries

If you would like to speak to somebody about your file, or there’s a specific area you’d like to reach, please use the contact information below.

Official Correspondence

For details on sending official correspondence, please consult our correspondence procedures and the list of designated establishments that can accept mail on our behalf.

Mail
Courier

Canadian Intellectual Property Office
Place du Portage I
50 Victoria St., Room C-114
Gatineau, Quebec K1A 0C9

Canadian Intellectual Property Office
Place du Portage I
50 Victoria St., Room C-114
Gatineau, Quebec J8X 3X1

Fax
  • 819-953-CIPO (2476)
  • 819-953-OPIC (6742)

Important: When writing to TMOB, you must indicate Attention: Opposition or Attention: Section 45

Faxes sent to any other number will not be considered received by the Office.