H05B 31/48
Electric arc lamps: having more than two electrodes
Official title: having more than two electrodes {(electrodes in the open H05B31/0012)}
H05B31/48 (Electric arc lamps: having more than two electrodes) appears on 75 US grants and 93 published applications in this corpus.
Search patents in H05B- Granted patents
- 75
- Published applications
- 93
- Assignees
- 76
- Inventors
- 171
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 5 |
| 2007 | 3 | 5 |
| 2008 | 5 | 10 |
| 2009 | 3 | 0 |
| 2010 | 0 | 8 |
| 2011 | 6 | 5 |
| 2012 | 4 | 14 |
| 2013 | 7 | 9 |
| 2014 | 6 | 5 |
| 2015 | 9 | 3 |
| 2016 | 5 | 5 |
| 2017 | 4 | 8 |
| 2018 | 5 | 4 |
| 2019 | 8 | 4 |
| 2020 | 2 | 2 |
| 2021 | 0 | 0 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Keypad interface for programming a load control system10 Mar 2026US 12,575,009 B2Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting29 Jul 2025US 12,376,206 B2Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting15 Aug 2023US 11,729,873 B2Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting1 Feb 2022US 11,240,886 B2Lutron Technology Company LLC
- Keypad interface for programming a load control system1 Feb 2022US 11,240,887 B2Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting20 Nov 2025US 2025/0358911 A1Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting26 Oct 2023US 2023/0345594 A1Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting19 May 2022US 2022/0159798 A1Lutron Technology Company LLC
- Keypad interface for programming a load control system19 May 2022US 2022/0159799 A1Lutron Technology Company LLC
- Keypad interface for programming a load control system29 Oct 2020US 2020/0344855 A1Lutron Technology Company LLC
Most cited
By later US patents
- Switched constant current driving and control circuit191US 7,202,608 B2TIR Systems Ltd. · 2007
- Method and apparatus for controlling driving current of illumination source in a display system139US 7,057,359 B2Au Optronics Corporation · 2006
- Constant current light emitting diode (LED) driver circuit and method101US 7,944,153 B2Intersil Americas Inc. · 2011
- Switched constant current driving and control circuit92US 7,420,335 B2Tir Technology LP · 2008
- Switched constant current driving and control circuit86US 7,358,681 B2Tir Technology LP · 2008