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A blue folder with the label Patents

Buying, selling, or licensing patents?

Or you are a lawyer involved in such a transaction?
We can help.

Title to registered Canadian patents is transferred by filing a formal “assignment”.

 We help with:

  • Due diligence
  • Portfolio analysis
  • The legal agreements
  • Preparing assignments
  • Filing assignments to change the ownership of trademark registrations



Assignments of patents must be registered in the country of the patent to effect a change of the ownership on the patent register. The rules for valid assignments in Canada and the US are slightly different.

In order to register a valid patent assignment in Canada:

  • the assignment must be signed by the assignor
  • the signature of the assignor must be witnessed
  • the signature of the assignee is not required
  • the assignment does not need to be notarized
  • the government fee is $100
  • our fee to assist with the preparation of an assignment is $175+
  • our fee to register an already prepared assignment is $200



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