Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648723 | Method and apparatus for separating and analyzing composite AC/DC waveforms | — | 1997-07-15 |
| 5638057 | Ground fault detection and measurement system for airfield lighting system | — | 1997-06-10 |
| 5485151 | Airfield lighting system | Edwin K. Runyon, Todd E. McCorkle, Mark E. Weihs, Earl R. Williams | 1996-01-16 |
| 4941518 | Fluid injection system | Robert M. Spencer | 1990-07-17 |
| 4938262 | Fluid injection system | Robert M. Spencer | 1990-07-03 |
| D307794 | Fluid dispensing cassette for dispensing doses of sterilizing liquid | Jay Wilson | 1990-05-08 |
| 4913196 | Fluid injection system pumping methods | Robert M. Spencer | 1990-04-03 |
| 4909287 | Fluid injection system | Robert M. Spencer | 1990-03-20 |
| D306066 | Multi-dispenser cassette or the like for dispensing doses of sterilizing liquid | Charles Howlett | 1990-02-13 |
| D306065 | Dispenser cassette or the like for dispensing doses of sterilizing liquid | Charles Howlett | 1990-02-13 |
| 4899519 | Fluid injection system cassette and fluid packaging methods | Robert M. Spencer | 1990-02-13 |
| 4869286 | Fluid injection system coupling and injector valve | Robert M. Spencer | 1989-09-26 |
| 4817800 | Fluid injection system cassette and fluid packaging methods | Robert M. Spencer | 1989-04-04 |
| 4576539 | Wheelchair passenger lift apparatus for transit stations | — | 1986-03-18 |