Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878012 | Charge balanced feedback transmitter | John P. Schulte, Roger L. Frick, Brian L. Westfield, Randy Kenneth Paschke | 1989-10-31 |
| 4818994 | Transmitter with internal serial bus | Steven Matthew Quist, Roger L. Frick, Randy Kenneth Paschke | 1989-04-04 |