H05B 41/22
For lamps having an auxiliary starting electrode
Official title: for lamps having an auxiliary starting electrode
H05B41/22 (For lamps having an auxiliary starting electrode) appears on 7 US grants and 1 published applications in this corpus.
Search patents in H05B- Granted patents
- 7
- Published applications
- 1
- Assignees
- 7
- Inventors
- 13
- Latest grant
- 14 Aug 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Three electrode arc-discharge lamp14 Aug 2007US 7,256,549 B1Hewlett-Packard Development Company, L. P.
- High-pressure discharge lamp7 Mar 2000US 6,034,477 AU. S. Philips Corporation
- Device for initiating discharge of cold-cathode discharge tube19 Apr 1994US 5,304,897 ASanyo Electric Co., Ltd.
- Cold-cathode fluorescent discharge tube17 Aug 1993US 5,237,241 ASony Corporation
- DC plasma display panel and driving method thereof3 Aug 1993US 5,233,272 ASamsung Electron Devices Co., Ltd.
Most cited
By later US patents
- High-pressure discharge lamp28US 6,034,477 AU. S. Philips Corporation · 2000
- High intensity discharge ballast with hot restrike performance15US 4,455,510 AHID Systems, Inc. · 1984
- DC plasma display panel and driving method thereof6US 5,233,272 ASamsung Electron Devices Co., Ltd. · 1993
- Electric device provided with a gas and/or vapor discharge lamp5US 4,010,398 AU. S. Philips Corporation · 1977
- Cold-cathode fluorescent discharge tube2US 5,237,241 ASony Corporation · 1993