Notice of intention to restrict samples of biological material
Use this form to file a notice of the intention to restrict the availability of samples of biological material to experts.
Documents
Details
In order to be effective, this form must be filed before the office has completed the preparations for publishing your application under Section 16(1) of the Patents Act 1977. The restriction will not be effective after the grant of a patent on the application.
You can post this form to us. Instructions are on the form.
Next steps
When we receive your request, we will:
- tell you when we deal with it
- publish the restriction at the same time as we publish your patent application
- tell you about any requests to access samples of the biological material
The restriction will end when we grant the patent or if it is withdrawn or refused.
Cost
No fee.
Updates to this page
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Fees changed for 1 April 2026.
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A new end page has been added. This contains a checklist and sending instructions. Supporting text added to questions that required further clarification.
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Form 8A: data privacy added.
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First published.