Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12101064 | Vacuum tube amplifier module and assembly method thereof | — | 2024-09-24 |
| 5670043 | Multi-function self-cleaning fluid treatment system and method for using the same | — | 1997-09-23 |
| 5543087 | Multi-function fluid treatment system and method for using the same | Edward Lappin, Joseph A. Shaffer | 1996-08-06 |
| 5387339 | High efficiency liquid filtration system and method for using the same | Edward Lappin | 1995-02-07 |