Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583566 | Low wattage fluorescent lamp having improved phosphor layer | Feng Jin | 2003-06-24 |
| 6580097 | Light emitting device with phosphor composition | William Winder Beers, Alok Mani Srivastava, Lionel M. Levinson, Anil Raj Duggal | 2003-06-17 |
| 6525460 | Very high color rendition fluorescent lamps | Pak K. Yuet | 2003-02-25 |
| 6452324 | Fluorescent lamp for grocery lighting | Pak K. Yuet | 2002-09-17 |
| 6436313 | Rare earth doped halophosphate phosphor | Alok Mani Srivastava, William Winder Beers, Holly Ann Comanzo | 2002-08-20 |
| 6400097 | Low wattage fluorescent lamp | Feng Jin, David Kachmarick | 2002-06-04 |
| 6384534 | Electrode material for fluorescent lamps | Alok Mani Srivastava, Holly Ann Comanzo, Laurence Bigio, William Winder Beers, Emoke Abasari | 2002-05-07 |
| 6294800 | Phosphors for white light generation from UV emitting diodes | Anil Raj Duggal, Alok Mani Srivastava, John M. Davenport, William Winder Beers | 2001-09-25 |
| 6252254 | Light emitting device with phosphor composition | William Winder Beers, Alok Mani Srivastava, Lionel M. Levinson, Anil Raj Duggal | 2001-06-26 |
| 5959405 | Electrodeless fluorescent lamp | Joseph Darryl Michael, David O. Wharmby | 1999-09-28 |
| 5944572 | Fluorescent lamp with phosphor coating of multiple layers | Pamela K. Whitman, Daniel R. Chirayath | 1999-08-31 |
| 5917291 | Electrodeless fluorescent lamp having an improved phosphor distribution arrangement and a method of making the same | Judit Szigeti, Gabor Sajo, Pamela K. Whitman, Laszlo Balazs | 1999-06-29 |
| 5751104 | Compact fluorescent lamp having a helical lamp envelope | Marton Hraboczki, John Lahl | 1998-05-12 |
| 5731659 | Fluorescent lamp with phosphor coating of multiple layers | Pamela K. Whitman, Daniel R. Chirayath | 1998-03-24 |
| 5726528 | Fluorescent lamp having reflective layer | Jon Bennett Jansma | 1998-03-10 |
| 5705883 | Reduced length compact fluorescent lamp and method of forming same | Jennifer I. Barry, Frederic F. Ahlgren, Alexander L. Guba, Erwin G. Steinbrenner | 1998-01-06 |
| 5703440 | Compact fluorescent lamp and ballast arrangement with inductor directly between lamp ends | David J. Kachmarik, Raymond Albert Fillion, Erwin G. Steinbrenner, Donald W. Kuk | 1997-12-30 |
| 5680005 | Phosphor distribution for helical compact fluorescent lamp | Pamela K. Whitman, Jennifer I. Barry | 1997-10-21 |
| 5675215 | Compact fluorescent lamp having a helical lamp envelope and an efficient mounting arrangement therefor | Roy Watson, Jennifer I. Barry | 1997-10-07 |
| 5350972 | UV absorbing lamp glass | Gerald L. Bucher, Christopher H. Welker, Edward E. Hammer, Curtis E. Scott | 1994-09-27 |
| 4806824 | Fluorescent lamp using multi-layer phosphor coating | John D. Paynter, George R. Gillooly, Mary V. Hoffman | 1989-02-21 |
| 4574218 | Metal vapor lamp having internal means promoting condensate film formation | Robert L. Bateman | 1986-03-04 |
| 4503488 | Multiple headlamp system | Milan R. Vukcevich | 1985-03-05 |
| D260398 | Photoflash lamp unit | Donald R. Schindler | 1981-08-25 |
| D260267 | Photoflash lamp unit | Donald R. Schindler | 1981-08-18 |