H03F 2203/72

Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative

Official title: Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal

H03F2203/72 (Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative) appears on 1,519 US grants and 1,572 published applications in this corpus.

Search patents in H03F

Granted patents: 1,519
Published applications: 1,572
Assignees: 415
Inventors: 2,359
Latest grant: 29 Sep 2026

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H03F 2203/72: granted patents and published applications per publication year
Year	Granted patents	Published applications
1980	1	0
1981	0	0
1982	0	0
1983	1	0
1984	1	0
1985	1	0
1986	1	0
1987	1	0
1988	0	0
1989	1	0
1990	0	0
1991	1	0
1992	5	0
1993	2	0
1994	0	0
1995	1	0
1996	4	0
1997	1	0
1998	10	0
1999	13	0
2000	17	0
2001	31	5
2002	31	26
2003	26	26
2004	26	28
2005	28	34
2006	33	24
2007	32	45
2008	29	54
2009	41	52
2010	50	60
2011	50	51
2012	55	74
2013	70	52
2014	71	63
2015	57	60
2016	59	89
2017	88	72
2018	83	108
2019	121	80
2020	73	112
2021	64	114
2022	101	84
2023	69	86
2024	71	80
2025	61	58
2026	38	35

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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