H05B 41/30
In which the lamp is fed by pulses
Official title: in which the lamp is fed by pulses, e.g. flash lamp
H05B41/30 (In which the lamp is fed by pulses) appears on 745 US grants and 264 published applications in this corpus.
Search patents in H05B- Granted patents
- 745
- Published applications
- 264
- Assignees
- 289
- Inventors
- 956
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 30 | 0 |
| 1978 | 37 | 0 |
| 1979 | 20 | 0 |
| 1980 | 20 | 0 |
| 1981 | 31 | 0 |
| 1982 | 17 | 0 |
| 1983 | 25 | 0 |
| 1984 | 23 | 0 |
| 1985 | 7 | 0 |
| 1986 | 20 | 0 |
| 1987 | 13 | 0 |
| 1988 | 15 | 0 |
| 1989 | 9 | 0 |
| 1990 | 20 | 0 |
| 1991 | 23 | 0 |
| 1992 | 26 | 0 |
| 1993 | 15 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 15 | 0 |
| 1998 | 21 | 0 |
| 1999 | 23 | 0 |
| 2000 | 25 | 0 |
| 2001 | 8 | 4 |
| 2002 | 15 | 23 |
| 2003 | 26 | 15 |
| 2004 | 22 | 15 |
| 2005 | 8 | 23 |
| 2006 | 12 | 5 |
| 2007 | 9 | 15 |
| 2008 | 11 | 14 |
| 2009 | 10 | 11 |
| 2010 | 14 | 13 |
| 2011 | 7 | 9 |
| 2012 | 9 | 12 |
| 2013 | 7 | 11 |
| 2014 | 4 | 10 |
| 2015 | 10 | 18 |
| 2016 | 18 | 6 |
| 2017 | 8 | 11 |
| 2018 | 7 | 6 |
| 2019 | 10 | 11 |
| 2020 | 10 | 7 |
| 2021 | 6 | 9 |
| 2022 | 4 | 3 |
| 2023 | 2 | 4 |
| 2024 | 4 | 0 |
| 2025 | 4 | 4 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat treatment apparatus for heating substrate by light irradiation15 Sep 2026US 12,739,952 B2SCREEN Holdings Co., Ltd.
- Voltage doubling circuit for powering a load19 May 2026US 12,635,044 B2Tomar Electronics, Inc.
- Liquid, air, and surface treatment using high intensity broad-spectrum pulsed light and method using the same27 May 2025US 12,311,067 B2Aruna Inovation LLC
- Intense pulse light (IPL) apparatus utilizing a pulse forming network (PFN)25 Mar 2025US 12,257,449 B2
- High-voltage pulse generator, gas laser apparatus, and method for manufacturing electronic device4 Mar 2025US 12,244,117 B2Gigaphoton Inc.
- Light-emitting device, flash device, imaging system, and imaging method13 Aug 2026US 2026/0235932 A1Canon Kabushiki Kaisha
- Methods and apparatus for thermal processing of materials4 Jun 2026US 2026/0151793 A1PulseForge Inc.
- Flash irradiation apparatus30 Apr 2026US 2026/0122738 A1Ushio Denki Kabushiki Kaisha
- Control method for pulsed light device and related device23 Apr 2026US 2026/0113825 A1Hangzhou Ulike Technology Co., Ltd.
- Charging Circuit And, Charging Method5 Mar 2026US 2026/0066672 A1Siemens Schweiz AG
Most cited
By later US patents
- Method and apparatus for therapeutic electromagnetic treatment178US 5,620,478 AESC Medical Systems Ltd. · 1997
- Microprocessor controlled lamp flashing system with cooldown protection155US 5,078,039 ALightwave Research · 1992
- Method and apparatus for therapeutic electromagnetic treatment151US 5,626,631 AESC Medical Systems Ltd. · 1997
- Flashing and diming fluorescent lamps for a gaming device148US 5,854,542 AAcres Gaming Incorporated · 1998
- LCD backlighting method and apparatus using a xenon flash tube including drive circuit144US 5,673,999 ANorand Corporation · 1997