Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7642719 | Energy efficient fluorescent lamp having an improved starting assembly and preferred method for manufacturing | Gary R. Allen, William Winder Beers, Matthew Pierce, Evan Karrs | 2010-01-05 |
| 6841939 | Fluorescent lamp | Curtis E. Scott, Jon Bennett Jansma | 2005-01-11 |
| 6650042 | Low-wattage fluorescent lamp | — | 2003-11-18 |
| 6157134 | Lead wires for improved starting of compact fluorescent lamp systems | — | 2000-12-05 |
| 6140751 | Electrolytic capacitor heat sink | Alvin A. Bush | 2000-10-31 |
| 6118217 | Additional electrode for three-level output and improved starting of compact fluorescent lamp systems | Michael M. Minarczyk | 2000-09-12 |
| 6064152 | Electrically conductive cylinder for improved starting of compact fluorescent lamp systems | Alvin A. Bush | 2000-05-16 |
| 6051930 | Extended wire connector for starting compact fluorescent lamp system | Alvin A. Bush | 2000-04-18 |
| 5592054 | Fluorescent lamp ballast with selectable power levels | Louis R. Nerone, Maria Sanchez | 1997-01-07 |
| 5506474 | Compact fluorescent lamp using a light reflecting adhesive material | Vito J. Arsena, Ferenc Lantos, Elizabeth Cserteg | 1996-04-09 |
| 5350972 | UV absorbing lamp glass | Gerald L. Bucher, Christopher H. Welker, Curtis E. Scott, Thomas F. Soules | 1994-09-27 |
| 4914354 | Reactor-type ballast circuit | Eugene Lemmers | 1990-04-03 |
| 4900986 | Ballast circuit for starting fluorescent lamps | Eugene Lemmers | 1990-02-13 |
| 4698549 | D.C. lamp discharge gas pumping control | Eugene Lemmers | 1987-10-06 |
| 4644227 | Three lamp ballast | Eugene Lemmers, Dail L. Swanson | 1987-02-17 |
| 4562381 | Starting circuit for multiple fluorescent lamps | Eugene Lemmers | 1985-12-31 |
| RE31970 | High efficiency ballast system for gaseous discharge lamps | David H. Riesland, Eugene Lemmers | 1985-08-13 |
| 4523126 | Shaped discharge lamp with starting aid | Charles E. J. Beck | 1985-06-11 |
| 4513225 | Fluorescent lamp series system | Alfred E. Lemmers | 1985-04-23 |
| 4468591 | Shaped discharge lamp with starting aid and starting strip | Charles E. J. Beck | 1984-08-28 |
| 4467247 | High frequency fluorescent lamp circuit | — | 1984-08-21 |
| 4463280 | Shaped discharge lamp with starting aid | Charles E. J. Beck | 1984-07-31 |
| 4425530 | Time delay lamp ballast circuit | Eugene Lemmers | 1984-01-10 |
| 4422010 | Shaped discharge lamp with starting aid | — | 1983-12-20 |
| 4399391 | Circuit for starting and operating fluorescent lamps | Eugene Lemmers, Dail L. Swanson | 1983-08-16 |