G01S 3/00

Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic

Official title: Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received (position-fixing by co-ordinating a plurality of determinations of direction or position lines G01S5/00)

G01S3/00 (Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic) appears on 6,691 US grants and 5,411 published applications in this corpus.

Search patents in G01S

Granted patents: 6,691
Published applications: 5,411
Assignees: 2,400
Inventors: 12,174
Latest grant: 6 Oct 2026

Filings by year

G01S 3/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	73	0
1977	64	0
1978	76	0
1979	63	0
1980	72	0
1981	65	0
1982	58	0
1983	27	0
1984	38	0
1985	33	0
1986	46	0
1987	71	0
1988	43	0
1989	58	0
1990	65	0
1991	96	0
1992	68	0
1993	89	0
1994	92	0
1995	85	0
1996	95	0
1997	80	0
1998	103	0
1999	104	0
2000	94	0
2001	119	16
2002	100	84
2003	85	113
2004	109	105
2005	78	103
2006	80	142
2007	97	110
2008	103	137
2009	103	173
2010	128	184
2011	141	205
2012	164	225
2013	164	204
2014	180	220
2015	208	249
2016	223	298
2017	263	249
2018	285	329
2019	346	361
2020	322	336
2021	330	376
2022	298	291
2023	299	311
2024	297	258
2025	255	207
2026	156	125

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

Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic

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