Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917795 | Automatic valve assembly | Lawrence V. Maldarelli, Henry Church | 1990-04-17 |
| 4901754 | Valve improvements | Lawrence V. Maldarelli, Henry Church, Roy Graboff | 1990-02-20 |
| 4844414 | Valve improvements | Lawrence V. Maldarelli, Henry Church, Roy Graboff | 1989-07-04 |
| 4778595 | Automatic valve assembly | Henry Church, Roy Graboff, Lawrence V. Maldarelli | 1988-10-18 |
| 4289155 | Apparatus for cleaning a swimming pool | — | 1981-09-15 |