Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331275 | Orthogonal film drive | Robert D. Therien, Edward J. Kraemer | 1982-05-25 |
| 4324474 | Microfilming system | Edward J. Kraemer, Robert D. Therien, Frederick E. Walsh, Han-Jung Lee, Ronald Thomas Bell +1 more | 1982-04-13 |
| 4277190 | Indicia printer | Thomas D. Horning, Edward J. Kraemer | 1981-07-07 |
| 4249821 | Belt microfilm camera | Forrest L. Langford, Robert D. Therien | 1981-02-10 |
| 4193685 | Fixed message carrier | Edward J. Kramer, Martin M. Bondar, Ronald L. Whitney | 1980-03-18 |