Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12050241 | Power line sensors with automatic phase identification | Nasahn Frank READER | 2024-07-30 |
| 5791918 | Spark plug connector | — | 1998-08-11 |
| 4967594 | Sheathing and venting of resistance-tape level sensor | Albert D. Ehrenfried, John A. Gunnarson, Thomas C. Thorstensen | 1990-11-06 |
| 4942764 | Mounting head for a resistance-tape level sensor | Edwin P. Dews, John A. Gunnarson, Albert D. Ehrenfried | 1990-07-24 |