RF

R. David Fehrman

SR Standard Register: 3 patents #30 of 150Top 20%
📍 Dayton, OH: #550 of 1,892 inventorsTop 30%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,609,748 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6554193 Smart card with replaceable chip Daniel Thaxton, Martin H. Hileman, Patrick Fitzgerald Wilkinson 2003-04-29
6375081 Business form including smart card and smart card reader Martin H. Hileman, Daniel Thaxton 2002-04-23
6193163 Smart card with replaceable chip Daniel Thaxton, Martin H. Hileman, Patrick Fitzgerald Wilkinson 2001-02-27