Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359746 | Zero level correction apparatus | Robert E. Goldschmidt, David A. Townzen | 1982-11-16 |
| 4359747 | Thermocouple recorder | Robert E. Goldschmidt, David A. Townzen | 1982-11-16 |
| 4359751 | Stepper motor for data recorder | Robert E. Goldschmidt, David A. Townzen | 1982-11-16 |
| 4329693 | Method of and apparatus for data recording and the like | Robert E. Goldschmidt, David A. Townzen | 1982-05-11 |