Patent Law Practice Center

Request For Reexamination Of 3M Lithium-Ion Battery Patent Among Those Filed Week Of 7/25/11

Here is the latest installment of Reexamination Requests from Scott Daniels, of Reexamination Alert and Practice Center Contributor…

An unidentified party has sought reexamination of 3M’s U.S. Patent No. 7,078,128 for cathode compositions for lithium-ion batteries (see ex parte Request No. (10)).  The ‘128 patent was the subject of an ITC investigation against Sony and others in 2007, which ended in settlements.  No reexamination has yet been requested against3M’s U.S. Patent No. 6,964,828 that was also in the ITC’s investigation.

In March Google requested reexamination U.S. Patent No. 6,981,040 in response to an infringement allegation by the ‘040 patentee, Personalized User Model (PUM).  Now, Google has requested reexamination of U.S. Patent No. 7,685,276 (see inter partes Request No. 3), the other PUM patent-in-suit.

Requests were also filed against three Hewlett-Packard patents for circuits and switches (see ex parte Request Nos. (11), (12) & (13)). (more…)