Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998203 | Postage meter with a non-volatile memory security circuit | Peter C. DiGiulio, Warren G. Hafner | 1991-03-05 |
| 4747057 | Electronic postage meter having power up and power down protection circuitry | Peter C. DiGiulio, Warren G. Hafner | 1988-05-24 |
| 4728999 | Light emitting diode assembly | Hugh St. L. Dannatt, Donald T. Dolan | 1988-03-01 |
| 4710882 | Electronic postage meter having a nonvolatile memory selection means | Peter C. DiGiulio | 1987-12-01 |
| 4701856 | Reset delay circuit for an electronic postage meter | Peter C. DiGiulio, Warren G. Hafner | 1987-10-20 |
| 4455562 | Control of a light emitting diode array | Donald T. Dolan | 1984-06-19 |
| 4445128 | Method and apparatus for compensating for irregular motion | Donald T. Dolan | 1984-04-24 |
| 4427275 | Xerographic electronic printer | — | 1984-01-24 |