In a recent decision from the Federal Circuit, In Re Mostafazadeh, Case No. 2010-1260 (Fed. Cir. May 3, 2011), the Federal Circuit affirmed the Board of Patent Appeals and Interferences’ (the “Board”) decision upholding the patent examiner’s rejection of certain claims of a reissue patent application. The Federal Circuit affirmed the Board because the reissue application impermissibly attempted to recapture subject matter surrendered during prosecution of the original patent application.
The patent at issue, U.S. Patent Number 6,034,423 (the “‘423 patent”), is directed to lead frame based semiconductor packaging. The ‘423 patent describes two embodiments, a pin-type package and a bottom-surface-mount package. The originally filed claims were rejected as either anticipated or obvious. The independent claims were then amended to add the requirement of “circular attachment pads,” and the applicant argued that “circular attachment pads” were novel. As a result of the amendment, the ‘423 patent issued as amended.
Continue reading