Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5718310 | Cord winder | — | 1998-02-17 |
| 5680441 | Adaptor set for converting standard telephone into cordless telephone using replacement handset | — | 1997-10-21 |
| 5597265 | Method and apparatus for the in-situ treatment of contamination in soil | — | 1997-01-28 |
| 4908847 | Adaptor set for converting standard telephone into cordless telephone | Charles Hannon | 1990-03-13 |
| D305532 | Rotatable modular connector for a telephone | Charles Hannon | 1990-01-16 |
| 4699591 | Rotatable connector | Charles Hannon, Kurt Augustin | 1987-10-13 |
| 4699592 | Rotatable connector | Charles Hannon | 1987-10-13 |