Tirzepatide canada patent time?

Do you want the Canadian patent expiry date for tirzepatide itself (composition-of-matter) or for specific uses/formulations? In Canada, patent protection is complex because there can be multiple families (composition, methods of use, formulations) and there can be term restoration (PTR) for regulatory review.

What I can tell in general:
- Standard patent term is 20 years from the earliest filing date in Canada for each patent family.
- Canada also allows Patent Term Restoration (PTR) to compensate for time spent getting regulatory approval, but the amount is limited (and you need to file a PTR request with the Canadian Intellectual Property Office).
- There are likely multiple patent families around tirzepatide (e.g., composition-of-matter, specific uses such as diabetes or obesity, formulations). Each family will have its own expiry date, so you may see different dates for different claims.
- Once a main composition patent expires, earlier or later-expiring related patents may still provide protection for specific uses or formulations.

To get precise dates:
- Check the Canadian Patents Database (CIPO) for tirzepatide, using the patent numbers or search terms like “tirzepatide”, “GIP/GLP-1 dual agonist”, or Lilly’s assignee name.
- Cross-check with WIPO Patentscope or Google Patents filtered to Canada for the same patent family numbers.
- Look at the expiry/term data and note any PTR granted (or pending).

If you’d like, I can help you look up the current Canadian patent status and provide the exact expiry dates for each relevant patent family and their numbers. I just need your go-ahead to search publicly available patent records. Also, I can add a note on regulatory exclusivity (if any) in Canada, since patent expiry isn’t the same as market exclusivity.