> You have implemented second one, but seems it already was patentedIts an old idea and appeared for Linux in March 1998: Little project from Philipp Reisner called "mergemem". http://groups.google.com/group/muc.lists.linux-kernel/browse_thread/thread/387af278089... so if there is a patent which is relevant (and thats a question for lawyers and legal patent search people) perhaps the Linux Foundation and some of the patent busters could take a look at mergemem and re-examination. Alan --
