Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228056 | Intermittent regulator | John R. Boehringer, John Karpowicz, Anthony Turchi | 2001-05-08 |
| D419084 | Gauge | John R. Boehringer, John Karpowicz | 2000-01-18 |
| D417409 | Gauge body | John R. Boehringer, John Karpowicz | 1999-12-07 |
| 5992239 | Gauge | John R. Boehringer, John Karpowicz | 1999-11-30 |