Section 30(6) of the UK Patents Act states that any assignment or
mortgage is void unless in writing and executed by all parties to the
transaction or on their behalf.
Baxter v Netherlands Produktielaboratorium: in equity, each
assignment would be treated as an agreement to assign and that
the assignee would be regarded in equity as the owner and
therefore entitled to sue for infringement.
Nothing on this site constitutes legal advice, an offer, an offer to treat or a legal relationship.
Always check with your IP consultant.
