Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5446664 | Method and apparatus for diagnosing faulty cylinders in internal combustion engines | David Vossen | 1995-08-29 |
| 5387870 | Method and apparatus for feature extraction from internal combustion engine ignition waveforms | Benjamin P. Knapp, Robert Trenary, Clarence B. Allgor, David T. Bach | 1995-02-07 |
| 5163671 | Automated single roller ticket processor with passive ticket reversal | — | 1992-11-17 |
| 4788419 | Ticket processing terminal with a single-cylinder ticket advancing mechanism | Paul M. Volpini, Edward A. Hoppe, Colin J. Gardyne | 1988-11-29 |
| 4677553 | Secure placement of confidential information on a circulated blank ticket | Brian J. Roberts | 1987-06-30 |