WA

William Altman

Mastercard: 1 patents #1,114 of 2,005Top 60%
📍 Phoenix, AZ: #1,944 of 6,660 inventorsTop 30%
🗺 Arizona: #10,057 of 32,909 inventorsTop 35%
Overall (All Time): #1,665,291 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5036461 Two-way authentication system between user's smart card and issuer-specific plug-in application modules in multi-issued transaction device John C. Elliott, James A. O'Connell, Lawrence C. Ladouceur, Keith Jarett 1991-07-30
4961142 Multi-issuer transaction device with individual identification verification plug-in application modules for each issuer John C. Elliott, James A. O'Connell, Lawrence C. Ladouceur, Keith Jarett 1990-10-02
4742596 Tool for cleaning and highlighting automotive engine timing marks 1988-05-10