Patent Theme

Optical Fiber Sensing Systems

Systems and methods that utilize optical fibers as sensing elements or for transmitting sensing signals, often for distributed monitoring of environmental conditions, phase changes, or integrating sensing with communication.

7,657 US filings from 1,401 companies since 2023 · 2023: 2,015 · 2024: 2,470 · 2025: 2,179 · 2026 YTD: 993

Measurement (Non-specific)Optical Elements & Systems

Top companies

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

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	Nippon Telegraph and Telephone Corporation	371	105	155	98	13	-36.8%
2	CORNING RESEARCH & DEVELOPMENT CORPORATION	364	92	108	111	53	+2.8%
3	NEC CORPORATION	363	65	150	102	46	-32.0%
4	COMMSCOPE TECHNOLOGIES LLC	312	102	86	105	19	+22.1%
5	Huawei Technologies Co., Ltd.	229	73	56	71	29	+26.8%
6	Sumitomo Electric Industries, Ltd.	208	57	63	59	29	-6.3%
7	VIAVI Solutions Inc.	143	38	47	42	16	-10.6%
8	Ciena Corporation	137	37	39	41	20	+5.1%
9	NEC Laboratories America, Inc.	101	39	20	32	10	+60.0%
10	CORNING INCORPORATED	90	25	26	22	17	-15.4%
11	CommScope Connectivity Belgium BVBA	89	30	34	17	8	-50.0%
12	Sterlite Technologies Limited	88	35	22	19	12	-13.6%
13	Panduit Corp.	74	17	26	20	11	-23.1%
14	Senko Advanced Components, Inc.	73	27	19	22	5	+15.8%
15	Nokia Solutions and Networks Oy	69	15	19	21	14	+10.5%
16	Fujitsu Limited	66	18	26	16	6	-38.5%
17	Cisco Technology, Inc.	63	18	21	17	7	-19.0%
18	Attochron, LLC	62	7	22	26	7	+18.2%
19	Fujikura Ltd.	61	16	21	17	7	-19.0%
20	Halliburton Energy Services, Inc.	59	24	20	9	6	-55.0%
21	Cable Television Laboratories, Inc.	58	20	19	16	3	-15.8%
22	FRONTIER COMMUNICATIONS HOLDINGS, LLC	57	8	12	30	7	+150.0%
23	Apple Inc.	49	21	9	12	7	+33.3%
24	SIGNIFY HOLDING B.V.	49	6	21	15	7	-28.6%
25	US Conec Ltd.	48	11	18	12	7	-33.3%