Consider using a registered patent agent
Registered Canadian patent agents are qualified and entitled to act on your behalf with the Canadian Intellectual Property Office (CIPO). View list of licensed patent agents.
1 – Filing your application
File your application with CIPO. To obtain a filing date, your application must include the following:
- an indication that the grant of a patent is intended
- identification of the applicant and their contact information
- a description of the invention (in any language)
These are the minimum requirements for obtaining a filing date.
While it's not yet mandatory, at this stage, CIPO recommends including the application fee and all the documents required for compliance in step 3.
Paying your application fee
- You do not need to pay your application fee to secure a filing date for your patent application.
- If you do not pay the application fee when you file, late fees will apply.
- The application fee and late payment fee are due no later than 3 months after the date of the notice you will receive from CIPO.
- If you do not pay the application fee and late fee within this time, your application will be considered withdrawn.
- If you do not meet the filing requirements, CIPO will send you a notice.
- If you do not reply to this notice within 2 months after the date of the notice, your application will be deemed never to have been filed.
- If you submit your description in a language other than English or French, CIPO will send you a notice requiring you to submit a translation no later than 2 months after the date of the notice.Footnote 1
Do not publicly disclose your invention until you have filed your application with CIPO.
2 – Filing certificate issued
If your application meets all the filing requirements, CIPO will send you a filing certificate within a few weeks of receiving your application. The certificate will confirm your application number and filing date.
3 – Checking compliance
CIPO will check your application to ensure that it contains all the information needed to proceed to the next step. A compliant application must include the following:
- a petition (a formal request for a patent)
- an abstract (a summary of your invention)
- a claim or claims to the invention
- a statement of entitlement or inventorship
- the appointment of an agent, if the application is filed by someone other than the inventor(s)
- the name and postal address of each inventor
- drawings and a sequence listing, if applicable
If your application is missing required parts, CIPO will send you a notice. You must provide the missing information no later than 3 months after the date of the notice. Footnote 1
4 – Your application is available online
In most cases, CIPO will make your application available to the public online through the Canadian Patents Database 18 months after the earliest priority date or your filing date.
5 – Paying your maintenance fee
You will need to pay annual maintenance fees starting from the second anniversary of your filing date. These fees keep your patent application or patent in good standing.
If you do not pay your maintenance fee by the due date, CIPO will send you a notice (a late fee will apply). You must respond to this notice before either of the following, whichever comes last:
- 6 months after the maintenance fee due date (the anniversary of the filing date)
- 2 months after the date of the notice
6 – Requesting an examination
Examination is the process CIPO uses to determine if an application qualifies for a patent. CIPO will only examine your patent application if someone requests it. You must request it within 4 years of the filing date of your patent application.
If you do not request an examination within this time, CIPO will send you a notice. You will then have 2 months from the date of the notice to request an examination. A late fee will apply.Footnote 1
Requesting a fast-track examination
CIPO offers 3 ways to expedite an examination:
- accelerated examination under a special order
- accelerated examination under the Patent Prosecution Highway
- accelerated examination for clean technologies
Each of the above has its own request process.
7 – Examination and report
A patent examiner will determine if your patent application complies with the Patent Act and the Patent Rules.
You will receive a report from the examiner about 18 months after the request for examination, or within a few months for fast-tracked applications. The examiner will identify any defects in your application in the examiner's report.
8 – Responding to the report
You can respond to the examiner's report by making changes to your application or presenting arguments.
You must respond no later than 4 months after the date of the examiner's report. Once your response is received, the examiner has 5 to 9 months to reconsider your application. You may then receive another examination report, or an examiner may phone you to address minor defects. Examination is an iterative process.
9 – Allowance or rejection and final action
If your application is approved
CIPO will send you a notice of allowance confirming that you will receive a patent and asking you to pay a final fee within 4 months of receipt.
If your application is rejected
CIPO will send you a final action report explaining why your application was rejected. You will have a last chance to respond and present arguments or propose changes to your application.
Appealing your rejection
If the examiner is still unsatisfied, CIPO will refer your application to the Patent Appeal Board. You may appear before the Board to argue your case. The Board will recommend that your application be allowed, allowed if amended, or refused by the Commissioner of Patents.
If your application is refused at this stage, you may appeal to the Federal Court of Canada within 6 months.
10 – Granting of patent
After approval, upon receipt of your final fee, CIPO will send you a letter by email or regular mail advising that your patent has been issued. The letter will include a link to our patent download page and a special code that will allow you to download your patent.
Aussi offert en français sous le titre Feuille de route de la PI – La marche à suivre pour obtenir votre brevet.