Is it possible to file a patent application when at least one Inventor can not be found after reasonable effort?
Yes, it is possible to file a patent application when an inventor(s) can not be found after diligent effort to reach such inventor(s). Generally the person most knowledgeable about the facts and circumstances about the non-signing inventor(s) should mail, via certified mail return receipt requested, a copy of the patent application?including the specification, clams, abstract, drawings and Declaration and Power of Attorney form?to each such inventor(s) at such inventor(s) last known address. The Declaration and Power of Attorney form must be signed by any remaining inventor(s), both on behalf of himself/herself/themselves as well as on behalf of each non-signing inventor(s). The person most knowledgeable about the facts and circumstances about the non-signing inventor(s) must also submit a Statement setting forth the attempt(s) to reach the non-singing inventor(s) and attach to such Statement evidence substantiating the effort to reach the non-signing inventor(s). If no signing invento
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