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H05B 41/3924

By phase control

Official title: {by phase control, e.g. using a triac (H05B41/3922 takes precedence)}

H05B41/3924 (By phase control) appears on 220 US grants and 131 published applications in this corpus.

Search patents in H05B

Granted patents: 220
Published applications: 131
Assignees: 111
Inventors: 297
Latest grant: 22 Jul 2025

Filings by year

H05B 41/3924: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	2	0
1977	4	0
1978	2	0
1979	1	0
1980	3	0
1981	2	0
1982	3	0
1983	1	0
1984	1	0
1985	4	0
1986	3	0
1987	4	0
1988	3	0
1989	1	0
1990	7	0
1991	3	0
1992	2	0
1993	4	0
1994	0	0
1995	4	0
1996	9	0
1997	5	0
1998	4	0
1999	3	0
2000	10	0
2001	9	0
2002	10	9
2003	10	6
2004	5	9
2005	4	12
2006	10	1
2007	9	2
2008	2	10
2009	1	10
2010	6	4
2011	5	13
2012	8	6
2013	7	4
2014	6	6
2015	8	4
2016	4	5
2017	4	2
2018	8	7
2019	4	6
2020	4	5
2021	2	3
2022	1	0
2023	4	3
2024	2	2
2025	2	2

By publication year. Applications have been published since 2001.

Recent patents

Load control device for high-efficiency loads22 Jul 2025US 12,369,233 B2Lutron Technology Company LLC
Load control device having a closed-loop gate drive circuit including overcurrent protection25 Mar 2025US 12,261,521 B2Lutron Technology Company LLC
Load control device for high-efficiency loads21 May 2024US 11,991,796 B2Lutron Technology Company LLC
Load control device having a closed-loop gate drive circuit including overcurrent protection6 Feb 2024US 11,894,764 B2Lutron Technology Company LLC
Load control device for high-efficiency loads15 Aug 2023US 11,729,874 B2Lutron Technology Company LLC

Most cited

By later US patents