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You must tell the Intellectual Property Office (IPO) if details in the are wrong or you need to change them.

Change your patent

To change a patent after it鈥檚 granted you must prepare electronic versions of:

• your patent documents with changes highlighted
• an explanation of why you鈥檙e making the change
• supporting documents

Email your documents to [email protected] with 鈥楶roposal to amend under section 27鈥� as the subject.

IPO will publish the change in the patents journal and let you know if anyone objects to your change. Your change will be approved if there are no objections after 4 weeks.

Correct your patent

You can correct patent documents if you鈥檝e made a genuine mistake.

Write a letter with details of:

• why you want to make the change
• any documents that the change will affect
• how any mistakes occurred

Send your letter to IPO.

Change personal details

Fill in a request to correct a name or address in the register and send to the address below to change:

• names
• addresses
• personal details

You do not have to pay anything.

Appoint a representative

Fill in an appointment or change of agent form and send to IPO to:

• appoint someone to deal with your patent for you
• change your representative
• change your representative鈥檚 details
• change the contact address for a patent

You do not have to pay anything.

Change owner

Fill in a notice of rights form and send to IPO if you鈥檙e no longer the owner of a patent, for example if you鈥檝e sold it.

You must pay 拢50.

Send your forms

Send your change requests to:

What happens next

IPO will update the register if the change is straightforward and there are no objections (if relevant). They will send confirmation to:

• you
• the new owner (if any)
• previous representatives (if changed)