Appeal No. 2006-2248 Application No. 10/158,618 the knowledge of the hypothetical person of ordinary skill in the art at the time of the amendment. Admitting evidence not available to the public, such as an affidavit of an attorney giving mental impressions from the attorney who made the amendment, would undermine the public notice function of the patent and its prosecution history. (12) Non-relevance of “intervening rights” We have not overlooked a possibility that an argument might be made that the so-called intervening rights provision relating to reissues makes jurisprudence on the doctrine of equivalents presumption inapplicable to reissue recapture rules. Our answer as to the argument is similar to the answer given by the Federal Circuit in Hester with respect to whether the doctrine of equivalents surrender principles have any applicability to reissue surrender principles. Hester squarely held that they do. Moreover, mixing “intervening rights” with “surrender” is like mixing apples with oranges or putting the cart before the horse. A patentee seeking a reissue claim which is barred by recapture is not entitled to a reissue patent under 35 U.S.C. § 251. If there is no reissue patent, there can be no intervening rights. - 37 -Page: Previous 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 NextLast modified: November 3, 2007