H05B 41/39
Continuously
Official title: continuously
H05B41/39 (Continuously) appears on 1,812 US grants and 1,061 published applications in this corpus.
Search patents in H05B- Granted patents
- 1,812
- Published applications
- 1,061
- Assignees
- 669
- Inventors
- 2,345
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 7 | 0 |
| 1979 | 12 | 0 |
| 1980 | 18 | 0 |
| 1981 | 8 | 0 |
| 1982 | 13 | 0 |
| 1983 | 19 | 0 |
| 1984 | 18 | 0 |
| 1985 | 23 | 0 |
| 1986 | 10 | 0 |
| 1987 | 23 | 0 |
| 1988 | 15 | 0 |
| 1989 | 24 | 0 |
| 1990 | 36 | 0 |
| 1991 | 52 | 0 |
| 1992 | 37 | 0 |
| 1993 | 32 | 0 |
| 1994 | 24 | 0 |
| 1995 | 54 | 0 |
| 1996 | 55 | 0 |
| 1997 | 47 | 0 |
| 1998 | 60 | 0 |
| 1999 | 62 | 0 |
| 2000 | 80 | 0 |
| 2001 | 82 | 7 |
| 2002 | 71 | 73 |
| 2003 | 64 | 55 |
| 2004 | 63 | 77 |
| 2005 | 52 | 91 |
| 2006 | 67 | 89 |
| 2007 | 58 | 63 |
| 2008 | 72 | 103 |
| 2009 | 43 | 86 |
| 2010 | 63 | 93 |
| 2011 | 64 | 56 |
| 2012 | 78 | 37 |
| 2013 | 55 | 39 |
| 2014 | 37 | 36 |
| 2015 | 38 | 27 |
| 2016 | 35 | 26 |
| 2017 | 22 | 22 |
| 2018 | 27 | 16 |
| 2019 | 16 | 22 |
| 2020 | 19 | 17 |
| 2021 | 8 | 7 |
| 2022 | 7 | 3 |
| 2023 | 7 | 8 |
| 2024 | 4 | 3 |
| 2025 | 3 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controlling groups of electrical loads16 Jun 2026US 12,660,069 B2Lutron Technology Company LLC
- Method for operating a discharge lamp and discharge lamp9 Jun 2026US 12,650,637 B2OSRAM GmbH
- Electronic devices for controlling lights3 Mar 2026US 12,568,570 B1Amazon Technologies, Inc.
- Load control device for high-efficiency loads22 Jul 2025US 12,369,233 B2Lutron Technology Company LLC
- Intense pulse light (IPL) apparatus utilizing a pulse forming network (PFN)25 Mar 2025US 12,257,449 B2
- Controlling groups of electrical loads24 Sep 2026US 2026/0292961 A1Lutron Technology Company LLC
- Methods and apparatus for thermal processing of materials4 Jun 2026US 2026/0151793 A1PulseForge Inc.
- Load Control Device for High-Efficiency Loads9 Oct 2025US 2025/0318027 A1Lutron Technology Company LLC
- Intense pulse light (ipl) apparatus utilizing a pulse forming network (pfn)22 May 2025US 2025/0161708 A1
- Load control device having a closed-loop gate drive circuit including overcurrent protection22 May 2025US 2025/0167666 A1Lutron Technology Company LLC
Most cited
By later US patents
- Universal ballast control circuit611US 6,137,240 ALumion Corporation · 2000
- Electronic ballast system528US 4,414,492 AIntent Patent A.G. · 1983
- Methods and systems for dimmable fluorescent lighting using multiple frequencies524US 8,138,676 B22012
- Network based multiple sensor and control device with temperature sensing and control499US 6,798,341 B1Leviton Manufacturing Co., Inc. · 2004
- Energy management control system354US 5,962,989 ANegawatt Technologies Inc. · 1999