Darrell H. Ogi has been granted 14 US patents while listed as an inventor at Atritech. The first was granted in 1987 and the most recent in April 2018. Darrell H. Ogi ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Darrell H. Ogi in Cupertino, CA, US.