F21S 41/172
High-intensity discharge light sources
F21S41/172 (High-intensity discharge light sources) appears on 219 US grants and 155 published applications in this corpus.
Search patents in F21S- Granted patents
- 219
- Published applications
- 155
- Assignees
- 66
- Inventors
- 376
- Latest grant
- 29 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 9 |
| 2002 | 17 | 13 |
| 2003 | 15 | 10 |
| 2004 | 7 | 13 |
| 2005 | 7 | 15 |
| 2006 | 14 | 22 |
| 2007 | 11 | 17 |
| 2008 | 17 | 13 |
| 2009 | 15 | 4 |
| 2010 | 14 | 5 |
| 2011 | 3 | 3 |
| 2012 | 6 | 6 |
| 2013 | 4 | 3 |
| 2014 | 6 | 0 |
| 2015 | 2 | 2 |
| 2016 | 1 | 8 |
| 2017 | 4 | 5 |
| 2018 | 5 | 1 |
| 2019 | 5 | 2 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Vehicle headlight assembly having an ejectable and replaceable lightbulb29 Jun 2021US 11,046,235 B2
- Vehicle headlight device having an ejectable and replaceable lightbulb assembly8 Jun 2021US 11,028,989 B2
- Lighting device for a motor vehicle headlight29 Dec 2020US 10,876,696 B2ZKW Group GmbH
- Headlamp having a circuit assembly for simulating a load current from a vehicle electrical system28 Apr 2020US 10,638,568 B2OSRAM Beteiligungsverwaltung GmbH
- Universal type mounting structure for car lamp bulb and method for assembling universal type mounting structure for car lamp bulb with bulb24 Mar 2020US 10,598,326 B2H.A. Automotive Systems, Inc.
- Vehicle Headlight Device Having An Ejectable And Replaceable Lightbulb Assembly26 Aug 2021US 2021/0262631 A1
- Vehicle Headlight Device Having An Ejectable And Replaceable Lightbulb Assembly13 May 2021US 2021/0140600 A1
- Vehicle Headlight Assembly Having An Ejectable And Replaceable Lightbulb28 May 2020US 2020/0164787 A1
- Lighting device for a motor vehicle headlight19 Mar 2020US 2020/0088373 A1ZKW Group GmbH
- Universal type mounting structure for car lamp bulb and method for assembling universal type mounting structure for car lamp bulb with bulb8 Aug 2019US 2019/0242542 A1H.A. Automotive Systems, Inc.
Most cited
By later US patents
- Headlamp control to prevent glare143US 6,861,809 B2Gentex Corporation · 2005
- Headlight for vehicle115US 4,799,135 AKabushiki Kaisha Toshiba · 1989
- Integrated light and accessory assembly89US 7,048,423 B2Visteon Global Technologies, Inc. · 2006
- Convectively cooled headlamp assembly76US 7,329,033 B2Visteon Global Technologies, Inc. · 2008
- Metal halide lamp having vacuum shroud for improved performance45US 4,935,668 AGeneral Electric Company · 1990