Patent Theme

Magnetic Field Detection

Use of magnetostatic or vector magnetometers and associated processing for detecting objects, mapping magnetic fields, or determining position and orientation in various applications.

4,117 US filings from 1,003 companies since 2023 · 2023: 1,119 · 2024: 1,260 · 2025: 1,289 · 2026 YTD: 449

Geophysics & Gravity Measurement

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	TDK CORPORATION	306	90	87	104	25	+19.5%
2	SIEMENS HEALTHINEERS AG	196	·	42	118	36	+181.0%
3	Allegro MicroSystems, LLC	146	37	34	50	25	+47.1%
4	Siemens Healthcare GmbH	146	102	44	·	·	—
5	KONINKLIJKE PHILIPS N.V.	140	47	46	38	9	-17.4%
6	GE PRECISION HEALTHCARE LLC	108	16	32	39	21	+21.9%
7	CANON MEDICAL SYSTEMS CORPORATION	103	19	33	33	18	0.0%
8	Infineon Technologies AG	96	22	33	34	7	+3.0%
9	LG INNOTEK CO., LTD.	64	29	15	17	3	+13.3%
10	Hyperfine Operations, Inc.	61	27	14	16	4	+14.3%
11	MELEXIS TECHNOLOGIES SA	51	20	14	13	4	-7.1%
12	SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.	48	12	18	13	5	-27.8%
13	Asahi Kasei Microdevices Corporation	38	5	13	14	6	+7.7%
14	Alps Alpine Co., Ltd.	35	6	10	15	4	+50.0%
15	Apple Inc.	33	12	12	9	·	-25.0%
16	KABUSHIKI KAISHA TOSHIBA	32	12	11	9	·	-18.2%
17	BIOSENSE WEBSTER (ISRAEL) LTD.	31	7	10	11	3	+10.0%
18	SAMSUNG ELECTRONICS CO., LTD.	30	9	8	7	6	-12.5%
19	Honeywell International Inc.	28	5	6	12	5	+100.0%
20	Kyoto University	26	6	7	9	4	+28.6%
21	The General Hospital Corporation	26	10	5	8	3	+60.0%
22	Analog Devices International Unlimited Company	25	8	13	4	·	-69.2%
23	The Regents of the University of California	25	6	7	7	5	0.0%
24	FUJIFILM CORPORATION	24	·	2	18	4	+800.0%
25	Mitsubishi Electric Corporation	24	7	8	6	3	-25.0%