Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357791 | OBD-II exhaust gas oxygen sensor | Thomas Schubert, Paul F. Smith, Carl Wesley Squire | 1994-10-25 |
| 5325711 | Air-fuel modulation for oxygen sensor monitoring | Douglas R. Hamburg, Thomas Schubert, Paul F. Smith | 1994-07-05 |