"The Intellectual Property Owners Association in its annual
survey found that the PTO in calendar year 2009 issued 165,213
utility patents, up from 154,699 in 2008, a 4.4% jump. (Utility
patents made up 94% of patent applications in 2009 - the balance
are design, plant, and reissue patents).
"IBM Corp. received the most utility patents last year, with
4,887, followed by Samsung Electronics Co. (3,592); Microsoft Corp.
(2,929); Canon K.K. (2,241) and Hitachi Ltd. (2,146)."