Apparently the discussion on the new Google patent application at Search Engine Watch Forums has touched a nerve, and xan, one of my favorite people to read, has blogged about patents - at length

Software Patents Dispute

I always enjoy how refreshing it is to read these search science people. There’s a purity of perspective and a candor about them that’s about a mile away from the acoutrements (sp?) that generally accompany the usual suspects who post at forums from the SEO mentality and viewpoint.

xan’s blog is gourmet fodder for anyone who likes to feast on the high-calorie, weightier matters of search.

The company was acquired by Google a while back, and the CIRCA White Paper was removed from the site, but this seems to be the original patent at the U.S. Patent Office

Meaning-based information organization and retrieval

Article at Resource Shelf about the acquisition, with a working link.