Polymer Film and Membrane Fabrication

Techniques for manufacturing thin polymer layers, sheets, or multi-layer structures, often optimized for specific properties such as flexibility, barrier function, filtration, or mechanical strength.

8,903 US filings from 2,525 companies since 2023 · 2023: 2,681 · 2024: 2,747 · 2025: 2,326 · 2026 YTD: 1,149

Polymer Working & Compounding

Top companies

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

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	3M Innovative Properties Company	193	66	56	50	21	-10.7%
2	TOYOBO CO., LTD.	160	45	59	45	11	-23.7%
3	Dow Global Technologies LLC	152	36	64	29	23	-54.7%
4	FUJIFILM CORPORATION	134	52	21	40	21	+90.5%
5	Toray Industries, Inc.	115	28	41	28	18	-31.7%
6	LG Chem, Ltd.	110	31	36	33	10	-8.3%
7	NITTO DENKO CORPORATION	104	46	33	15	10	-54.5%
8	The Procter & Gamble Company	97	37	22	28	10	+27.3%
9	Borealis AG	95	21	22	43	9	+95.5%
10	KURARAY CO., LTD.	83	33	22	18	10	-18.2%
11	DAIKIN INDUSTRIES, LTD.	81	34	12	24	11	+100.0%
12	NAN YA PLASTICS CORPORATION	76	26	20	22	8	+10.0%
13	MITSUBISHI CHEMICAL CORPORATION	69	19	15	22	13	+46.7%
14	SEKISUI CHEMICAL CO., LTD.	66	26	17	15	8	-11.8%
15	TOPPAN INC.	66	23	23	12	8	-47.8%
16	SK INNOVATION CO., LTD.	58	22	19	13	4	-31.6%
17	KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS	56	7	18	17	14	-5.6%
18	AGC Inc.	54	21	12	15	6	+25.0%
19	AMCOR FLEXIBLES NORTH AMERICA, INC.	50	8	17	17	8	0.0%
20	SK microworks Co., Ltd.	49	15	18	15	1	-16.7%
21	MITSUBISHI GAS CHEMICAL COMPANY, INC.	48	13	17	12	6	-29.4%
22	CELGARD, LLC	47	14	18	9	6	-50.0%
23	SABIC GLOBAL TECHNOLOGIES B.V.	47	12	14	13	8	-7.1%
24	Stora Enso OYJ	47	15	10	19	3	+90.0%
25	DAI NIPPON PRINTING CO., LTD.	46	14	9	15	8	+66.7%