Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901813 | Flow meter alarm device | — | 2005-06-07 |
| D397631 | Capacitance liquid level sender | — | 1998-09-01 |
| D378284 | Liquid level sender | Henry G. Grilk, John A. Roser | 1997-03-04 |
| 4267721 | Respiratory analyzer | Ned Longenecker, Clair M. Becker, Alan G. Vogt, Jr. | 1981-05-19 |