Microsoft (NASDAQ: [[ticker:MSFT]]) announced Monday that it’s suing Barnes & Noble (NYSE: [[ticker:BKS]]) and the bookseller’s manufacturing partners over the Nook e-reader that runs on Google’s Android operating system. Here is a copy of the nine-page lawsuit filed Monday—I didn’t include the many pages of exhibits. It’s not the first time that Microsoft has asserted patent rights regarding Android—indeed, today’s statement from Microsoft vice president Horacio Gutierrez points out that handset maker HTC has participated in Microsoft’s licensing program for Android-based devices. But Microsoft said Barnes & Noble and its partners, Foxconn International Holdings and Inventec, declined that route. The legal actions were filed in U.S. District Court in Washington state and at the International Trade Commission. Pointedly unnamed in the press statement: Google (NASDAQ: [[ticker:GOOG]]) itself.