References can be submitted on letterhead stationery or on forms you can obtain from this office. The writer's signature must appear on the reference. Writers can update or revise their statements. An addendum will be included along with the original reference. If a reference is revised, only the more recent version will be used.
Employers typically request three or more references.
You may instruct the EPO to hold your request until specific references are received. It is your responsibility to insure that references are submitted to this office. References can be added at any time, and references can be deleted at your request or at the request of the writer. References previously collected should be evaluated for relevance and value. Current references generally receive greater consideration.