Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468052 | Vacuum relief device for fluid transfer and circulation systems | Paul C. McKain | 2002-10-22 |
| 6171073 | Fluid vacuum safety device for fluid transfer and circulation systems | Paul C. McKain, David Rizzi | 2001-01-09 |
| 5947700 | Fluid vacuum safety device for fluid transfer systems in swimming pools | Paul C. McKain, David Rizzi | 1999-09-07 |
| 5369555 | Light emitting screwdriver | Paul C. McKain | 1994-11-29 |