Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11662122 | Tankless water heater system | Hubert Nolte, Frank Stiebel | 2023-05-30 |
| 11536464 | Tank water heater assembly and transport assembly | Hubert Nolte, Frank Stiebel | 2022-12-27 |
| 5443124 | Hydraulic port collar | Edward T. Wood, Robert T. Brooks, Derrel G. Gurley, Monty E. Harris | 1995-08-22 |