Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5783939 | Stepper motor gauge calibration by AC feedback | Raymond Lippmann, Gail M. Sylvester, Michael J. Schnars, Ronald Kenneth Selby, James E. Nelson | 1998-07-21 |
| 5698974 | Robust gauge driving circuit with pulse modulated input | Aaron Roger Van Dyke, FRANK J. ATHERTON, Michael Dennis Phalen, Raymond Lippmann, James Cary Mejeur +1 more | 1997-12-16 |