PatentCluster - New Free Patent Analysis Tool

A new patent analysis tool debuted this month in beta mode based on technological concept clustering.

http://www.patentcluster.com/

From the founder-

"PatentCluster employs accurate, efficient open source search and clustering algorithms to help the patent searcher discover diverse and relevant groups of semantically related patents described with meaningful labels. The site features powerful advanced search syntax which allows the user to construct precise queries.This site was launched in January this year and is beta mode with a partial collection of the US patents. We plan to add the entire US issued and application patents in the coming months."