Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5182953 | Method and apparatus for shaft torque measurement with temperature compensation | Sylvester M. Ellinger, William B. Spillman, Jr. | 1993-02-02 |
| 5077527 | Encoding system and method for differential capacitive transducer | — | 1991-12-31 |
| 5075631 | Encoding system and method for differential capacitive transducer | — | 1991-12-24 |
| 4874245 | Optical shaft angular and torsional displacement and speed sensing system | William B. Spillman, Jr., Robert Rudd, Sylvester M. Ellinger, Bruce R. Kline | 1989-10-17 |
| 4863274 | Optical shaft torsional displacement and speed sensing system | William B. Spillman, Jr., Robert Rudd, Michael Ellinger, Bruce R. Kline | 1989-09-05 |
| 4820916 | Optically powered sensor system | — | 1989-04-11 |