Patent Theme

Functionalized Polysiloxanes

Synthesis and modification of polysiloxane polymers to introduce specific functional groups or structures, enhancing properties for applications like composites, coatings, biomedical uses, or powder treatment.

4,916 US filings from 1,538 companies since 2023 · 2023: 1,329 · 2024: 1,620 · 2025: 1,395 · 2026 YTD: 572

Polymer Synthesis (Polycondensation)

Top companies

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

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	DOW SILICONES CORPORATION	325	83	103	98	41	-4.9%
2	SHIN-ETSU CHEMICAL CO., LTD.	279	71	89	75	44	-15.7%
3	Dow Global Technologies LLC	186	45	66	56	19	-15.2%
4	Henkel AG & Co. KGaA	126	32	49	33	12	-32.7%
5	DOW TORAY CO., LTD.	109	24	37	29	19	-21.6%
6	Wacker Chemie AG	101	37	27	27	10	0.0%
7	Evonik Operations GmbH	98	29	39	21	9	-46.2%
8	L'Oreal	90	26	24	33	7	+37.5%
9	DAIKIN INDUSTRIES, LTD.	83	22	26	29	6	+11.5%
10	BASF SE	76	13	33	26	4	-21.2%
11	Momentive Performance Materials Inc.	62	15	23	16	8	-30.4%
12	3M Innovative Properties Company	52	10	22	14	6	-36.4%
13	AGC Inc.	48	7	9	14	18	+55.6%
14	ROHM AND HAAS COMPANY	47	7	19	14	7	-26.3%
15	Covestro Deutschland AG	42	15	18	5	4	-72.2%
16	KAO CORPORATION	30	12	4	11	3	+175.0%
17	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE	29	4	10	13	2	+30.0%
18	NOF CORPORATION	28	5	12	9	2	-25.0%
19	SHISEIDO COMPANY, LTD.	27	13	4	7	3	+75.0%
20	AdvanSix Resins & Chemicals LLC	26	5	8	11	2	+37.5%
21	ELKEM SILICONES FRANCE SAS	26	5	12	8	1	-33.3%
22	LG Chem, Ltd.	26	6	12	7	1	-41.7%
23	DuPont Toray Specialty Materials Kabushiki Kaisha	23	8	6	7	2	+16.7%
24	The Goodyear Tire & Rubber Company	23	2	11	8	2	-27.3%
25	NUTRITION & BIOSCIENCES USA 4, INC.	22	5	12	5	·	-58.3%