Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6528957 | Power/energy management control system | — | 2003-03-04 |
| 6452344 | Electronic dimming ballast | Russell L. MacAdam, Mark S. Taipale, Oliver K. Mihm, Jason C. Killo, Kolawole A. Otitoju | 2002-09-17 |
| 6111368 | System for preventing oscillations in a fluorescent lamp ballast | — | 2000-08-29 |
| 5905442 | Method and apparatus for controlling and determining the status of electrical devices from remote locations | Donald R. Mosebrook, David E. Houggy, Robert Gerald Palmer, Joel S. Spira, Donald F. Hausman, Jr. +1 more | 1999-05-18 |
| 5841239 | Circuit for dimming compact fluorescent lamps | Charles R. Sullivan, Scott R. Jurell | 1998-11-24 |
| 5357170 | Lighting control system with priority override | James M. Yorgey | 1994-10-18 |
| 5309068 | Two relay switching circuit for fluorescent lighting controller | Simo Pekka Hakkarainen, Scott McConnell | 1994-05-03 |
| 5187655 | Portable programmer for a lighting control | Robert P. Post, Michael J. D'Aleo, Doug Keeports, Jonathan H. Ference, Joel S. Spira | 1993-02-16 |
| 5173643 | Circuit for dimming compact fluorescent lamps | Charles R. Sullivan, Scott R. Jurell | 1992-12-22 |
| 5146153 | Wireless control system | Stephen J. Yuhasz, David L. Buehler, Raphael K. T. Tang, Joel S. Spira | 1992-09-08 |
| D327255 | Wall-mounted lighting control panel | Michael J. D'Aleo, Denis Darragh, Jonathan H. Ference, Michael J. Rowen, Joel S. Spira | 1992-06-23 |
| 5055742 | Gas discharge lamp dimming system | Scott R. Jurell, Eric R. Motto, Gordon E. Windows, Jr., Dennis Capewell, Donald F. Hausman, Jr. +1 more | 1991-10-08 |
| D319429 | Wall-mounted lighting control panel | Michael J. D'Aleo, Denis Darragh, Jonathan H. Ference, Michael J. Rowen, Joel S. Spira | 1991-08-27 |
| 5041763 | Circuit and method for improved dimming of gas discharge lamps | Charles R. Sullivan, Joel S. Spira, Scott R. Jurell, Eric R. Motto | 1991-08-20 |
| 5017837 | Indicator lamp system | R. Scott Hanna, Woodie C. Flowers, Stephen J. Yuhasz, Joel S. Spira, Philip R. Hall | 1991-05-21 |
| 5001386 | Circuit for dimming gas discharge lamps without introducing striations | Charles R. Sullivan, Scott R. Jurell | 1991-03-19 |
| RE33504 | Wall box dimer switch with plural remote control switches | Stephen J. Yuhasz | 1990-12-25 |
| 4954768 | Two wire low voltage dimmer | Charles C. Houng | 1990-09-04 |
| 4924151 | Multi-zone, multi-scene lighting control system | Michael J. D'Aleo, Denis Darragh, Jonathan H. Ference, Michael J. Rowen, Joel S. Spira | 1990-05-08 |
| 4894587 | High frequency gas discharge lamp dimming ballast | Aaron Jungreis, Dennis Capewell | 1990-01-16 |
| 4876498 | Two wire low voltage dimmer | Charles C. Houng | 1989-10-24 |
| 4833339 | Load control system | Stephen J. Yuhasz, Ian R. Hurst, Joel S. Spira | 1989-05-23 |
| 4803380 | Cover and support plate arrangement for wall mounted devices | Elliot G. Jacoby, Michael J. D'Aleo, Joel S. Spira, Richard A. Wagner, Stephen J. Yuhasz +1 more | 1989-02-07 |
| 4737609 | Push button switch | Stephen J. Yuhasz, Julian J. Raphael, Ronald P. Frazer | 1988-04-12 |
| 4663570 | High frequency gas discharge lamp dimming ballast | Dennis Capewell | 1987-05-05 |