R. Mark Dougherty has been granted 10 US patents while listed as an inventor at Cascade Microtech. The first was granted in 1999 and the most recent in December 2009. R. Mark Dougherty ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list R. Mark Dougherty in Beaverton, OR, US.