Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366717 | Fluid filter and indicator | Donald C. Leutz | 1983-01-04 |
| 4272368 | Fluid filter and indicator | Donald C. Leutz | 1981-06-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366717 | Fluid filter and indicator | Donald C. Leutz | 1983-01-04 |
| 4272368 | Fluid filter and indicator | Donald C. Leutz | 1981-06-09 |