Attack on Lam Research Plasma Processing Patent, Among the Reexamination Requests Filed Week of November 28, 2011
| December 5, 2011
Advanced Micro-Fabrication Equipment has requested reexamination of Lam Research’s U.S. Patent No. 5,998,932 related to plasma processing equipment (see ex parte Request No. (6)). Lam has sued AMFE for infringement of the Taiwanese counter-part patent and might soon sue in the United States for infringement of the ‘932 patent.
Reexamination was also requested for a Xerox patent (see inter partes Request No. (5)), but the identity of the requester is not shown in the PTO records.
Judge Randa Refuses to Lift Reexamination Stay despite Patentee’s Success (so far) with Examiner
| December 1, 2011
Courts cite 35 U.S.C. § 316(a) for the proposition that a reexamination is “complete” only when the PTO issues its reexamination certificate, canceling, confirming, amending original claims, and/or adding new claims. It is common for a patentee to cite § 316(a) for the proposition that the court should not consider developments in a reexamination until the proceeding is complete, i.e., until the PTO issues its certificate. On Tuesday, however, in Generac Power Systems v. Kohler, it was accused infringer who invoked § 316(a), in this case to maintain a reexamination stay despite a decision by the reexamination examiner in favor of patentability.
This past July, Judge Rudolph Randa of the Eastern District of Wisconsin stayed the infringement action pending resolution of the reexamination of the patent-in-suit, U.S. Patent No. 7,230,345 (related to a specific method of operating engine-driven electrical generators). In September, the reexamination examiner issued an Action Closing Prosecution, indicating that the patentability of all claims had been confirmed. Armed with this victory at the PTO, the patentee asked Judge Randa to lift the stay and allow the infringement action to proceed.