H05B 41/042
Using semiconductor devices
Official title: {using semiconductor devices}
H05B41/042 (Using semiconductor devices) appears on 433 US grants and 173 published applications in this corpus.
Search patents in H05B- Granted patents
- 433
- Published applications
- 173
- Assignees
- 171
- Inventors
- 686
- Latest grant
- 11 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 10 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 17 | 0 |
| 1983 | 12 | 0 |
| 1984 | 19 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 16 | 0 |
| 1991 | 23 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 17 | 0 |
| 1999 | 18 | 0 |
| 2000 | 19 | 0 |
| 2001 | 19 | 4 |
| 2002 | 22 | 23 |
| 2003 | 16 | 8 |
| 2004 | 11 | 10 |
| 2005 | 8 | 14 |
| 2006 | 10 | 10 |
| 2007 | 5 | 8 |
| 2008 | 11 | 20 |
| 2009 | 5 | 11 |
| 2010 | 10 | 25 |
| 2011 | 8 | 17 |
| 2012 | 14 | 7 |
| 2013 | 10 | 7 |
| 2014 | 7 | 5 |
| 2015 | 6 | 1 |
| 2016 | 3 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hybrid power supply systems, methods, and devices for excimer lamps11 Jun 2024US 12,010,768 B2Goodrich Corporation
- Light emission control device, light source device, and projection-type video display apparatus8 Jun 2021US 11,032,880 B2Seiko Epson Corporation
- Dimming a multi-lamp fluorescent light fixture by turning off an individual lamp using a wireless fluorescent lamp starter30 Aug 2016US 9,433,067 B2IXYS Intl Limited
- Connection circuit for connecting a driver to an external power supply for driving an LED unit23 Aug 2016US 9,426,849 B2Koninklijke Philips N. V.
- Constant current drive for LED light source19 Jul 2016US 9,398,665 B2Inventronics (Hangzhou), Inc.
- Hybrid power supply systems, methods, and devices for excimer lamps20 Apr 2023US 2023/0119015 A1Goodrich Corporation
- Light emission control device, light source device, and projection-type video display apparatus24 Sep 2020US 2020/0305245 A1Seiko Epson Corporation
- Connection circuit for connecting a driver device to an external power supply for driving an led unit16 Jun 2016US 2016/0174307 A1Koninklijke Philips N. V.
- Igniter-less power supply for xenon lamps in an accelerated weathering test apparatus15 Jan 2015US 2015/0015141 A1
- High watt type ceramic metal halide lamp illumination device4 Dec 2014US 2014/0354175 A1Iwasaki Electric Co., Ltd.
Most cited
By later US patents
- High intensity discharge lamp color121US 5,828,178 ATIR Systems Ltd. · 1998
- Dimming controller for a fluorescent lamp95US 5,504,398 ABeacon Light Products, Inc. · 1996
- Operating circuit for high-pressure discharge lamps with an ignition-time bridging function63US 5,917,287 APatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH · 1999
- High-pressure discharge lamp and lighting method52US 5,276,385 AToshiba Lighting & Technology Corporation · 1994
- Luminaire starting aid device49US 6,452,340 B1Acuity Brands, Inc. · 2002