Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8491762 | Water purification apparatus and process for purifying water | — | 2013-07-23 |
| 6080971 | Fluid heater with improved heating elements controller | David E. Seitz | 2000-06-27 |
| 5866880 | Fluid heater with improved heating elements controller | David E. Seitz | 1999-02-02 |
| D302047 | Exterior luminaire | Ray A. Flannery | 1989-07-04 |
| 4747085 | Method and apparatus for monitoring swimming pools | Gerald W. Dunegan | 1988-05-24 |
| 4686428 | High intensity discharge lamp self-adjusting ballast system with current limiters and a current feedback loop | Sidney A. Ottenstein | 1987-08-11 |
| 4682084 | High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp | Sidney A. Ottenstein | 1987-07-21 |
| 4276615 | Analog read-only memory system for antilog conversion | — | 1981-06-30 |