Appeal No. 1998-0425 Page 4 Application No. 08/272,527 The argument set forth by the appellants on pages 4-7 of their brief (Paper No. 20, filed March 28, 1997) is as follows: Each of the two patents relied upon to support the rejection ("the cited patents") is a parent case of the present application. For verification of the parent status of these two patents, please see page 1 of the specification of this application and the preliminary amendment filed in this case on July 11, 1994 attached hereto as Appendix B. Obviousness-type double patenting is a judicially created doctrine that may, in certain instances, prevent the owner of a pending application from using that application as a vehicle to obtain claims which vary from the owner's prior patent claims only in ways that are obvious in view of the prior art. In re Braithwaite, 154 USPQ 29 (CCPA 1967). The claims of a parent patent can be used as a basis ("base patent") for a double patenting rejection, but these claims cannot be treated as "prior art." In re White and Langer, 160 USPQ 417, 418 (CCPA 1969); In re Sutherland, 146 USPQ 485, 491 (CCPA 1965) ("the words of such claims cannot be treated as "prior art"); In re Bartfeld, 17 USPQ2d 1885, 1888 (Fed. Cir. 1991) ("Double patenting depends entirely on what is claimed in an issued patent. Obviousness relates to what is disclosed in a prior art reference"). Thus, a rejection founded on a conclusion that claims in an application differ from claims of a base patent only in an obvious manner must be supported by citation of an additional reference that represents prior art relative to the application claims. Ex parte Oetiker, 23 USPQ2d 1651 (Bd. App. 1990) dealt with the types of evidence which must be supplied to support double patenting (obviousness) rejections. In Oetiker the Board noted thatPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007