Stephen D. Bilgrien has been granted 2 US patents while listed as an inventor at Adaptive Micro Systems. The first was granted in 1999 and the most recent in March 2000. Stephen D. Bilgrien ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Stephen D. Bilgrien in Iron Ridge, WI, US.