Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11589437 | Pulse width modulator control circuit for generating a dimmer control voltage signal | — | 2023-02-21 |
| 9253854 | Flicker compensation in lighting devices | — | 2016-02-02 |
| 6189968 | Lounge and chair saver | Richard A. Emanuel | 2001-02-20 |
| 4963880 | Coplanar single-coil dual function transmit and receive antenna for proximate surveillance system | Michael Drummy | 1990-10-16 |
| 4683461 | Inductive magnetic field generator | — | 1987-07-28 |
| 4675658 | System including tuned AC magnetic field transmit antenna and untuned AC magnetic field receive antenna | Philip M. Anderson, III | 1987-06-23 |
| 4658241 | Surveillance system including transmitter and receiver synchronized by power line zero crossings | — | 1987-04-14 |
| 4647910 | Selector for AC magnetic inductive field receiver coils | — | 1987-03-03 |
| 4644286 | Article surveillance system receiver using synchronous demodulation and signal integration | — | 1987-02-17 |
| 4633250 | Coplanar antenna for proximate surveillance systems | Philip M. Anderson, III | 1986-12-30 |