human: Under the amended 35 U.S.C. 103(c), what type of evidence will provide proof that the inventions were commonly owned by, or subject to an obligation of assignment to, the same person, at the time the invention was made?
assistant: To disqualify a reference under 35 U.S.C. 103(c), applicant needs to supply evidence that the invention described in the application for patent and the invention described in the "prior art" reference applied against the application were commonly owed by, or subject to an obligation of assignment to, the same person, at the time the invention in the application for patent was made. The time requirement "at the time the invention was made" is required by statute. See 35 U.S.C. 103(c). Applications and references will be considered by the examiner to be owned by, or subject to an obligation of assignment to the same person, at the time the invention was made, if the applicant(s) or an attorney or agent of record makes a statement to the effect that the application and the reference were, at the time the invention was made, owned by, or subject to an obligation of assignment to, the same person. Thus, a statement, by itself, will be sufficient evidence. For a more detailed explanation, see the "Guidelines Setting Forth a Modified Policy Concerning the Evidence of Common Ownership, or an Obligation of Assignment to the Same Person, as Required by 35 U.S.C. 103(c),"  1241 OG 96 (Dec. 26, 2000).