Google Patents

A colleague writes to remind me of Google's patent searches: Patents site, which searches full text on all US patents, this search, returns only about 740 patents assigned to IBM, far fewer than there are, from a database of about 7 million. So appears to be far less inclusive than that of the USPTO office. I like the simple search, though. Its also not well known that you can search for US patents in a normal Google search by entering the word 'patents:' in front of the number, e.g. 'patent:4288291'. One odd thing, I used to often use Google's UPC code search by typing in just a 10-digit UPC/Bar code to ID a grocery item and also get some sample prices. Now when you do that I note that it sends you to a UPC search site.