Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5579043 | Openable thermal printer | — | 1996-11-26 | |
| 5471235 | Device for reading the printing done by a transfer thermal printer | — | 1995-11-28 | |
| 5446475 | Thermal print head with regulation of the amount of energy applied to its heating points | — | 1995-08-29 | |
| 5354134 | Device for registering the operations of a thermal transfer printer | — | 1994-10-11 | |
| 5264786 | Electrical device for measuring electrical parameters | David J. Clarke, Alain Chiffert, Alain Carnel | 1993-11-23 | $28,043,000 |
| 4908769 | Commodity metering systems | John E. Vaughan | 1990-03-13 | |
| 4871886 | Electronic key and receptacle therefor | John E. Vaughan, David R. Smale, John C. Heaton | 1989-10-03 | $23,814,000 |