Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962518 | Apparatus for measuring the thickness of a coating | Jerry J. Spongr | 1990-10-09 |
| 4656357 | Apparatus for measuring coating thickness | Jerry J. Spongr | 1987-04-07 |
| 4451732 | Apparatus for measuring thickness of coating on continuously moving material | Jerry J. Spongr | 1984-05-29 |
| 4441022 | Coating thickness measuring device | Boris B. Joffe, Jerry J. Spongr | 1984-04-03 |
| 4424445 | Portable coating thickness measuring device | Boris B. Joffe, John E. Tiebor, Jerry J. Spongr | 1984-01-03 |