Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6467602 | Electromechanical parking meter door communications interface | James Bench, David Lefevers, J. Lumpkin, Gregory Emile Chauvin | 2002-10-22 | $7,075,000 |
| 4739759 | Microprocessor controlled electrosurgical generator | Frederick W. Rexroth | 1988-04-26 | $1,018,000 |