Patent Theme

Advanced Impeller & Flow Path Design

Focuses on optimizing the geometry, structure, and internal flow channels of impellers, blades, and housings to improve fluid dynamics, efficiency, or specific performance characteristics of centrifugal pumps and fans.

5,015 US filings from 857 companies since 2023 · 2023: 1,388 · 2024: 1,646 · 2025: 1,398 · 2026 YTD: 583

Pumps (Centrifugal)

Top companies

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

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	General Electric Company	484	126	157	150	51	-4.5%
2	SAFRAN AIRCRAFT ENGINES	325	107	130	69	19	-46.9%
3	RTX Corporation	298	15	95	121	67	+27.4%
4	Pratt & Whitney Canada Corp.	198	57	46	56	39	+21.7%
5	RAYTHEON TECHNOLOGIES CORPORATION	129	91	32	6	·	-81.2%
6	LG ELECTRONICS INC.	93	34	36	19	4	-47.2%
7	MITSUBISHI HEAVY INDUSTRIES, LTD.	80	33	27	18	2	-33.3%
8	IHI Corporation	76	19	18	26	13	+44.4%
9	MTU Aero Engines AG	76	28	23	21	4	-8.7%
10	HAMILTON SUNDSTRAND CORPORATION	71	27	26	15	3	-42.3%
11	Rolls-Royce PLC	71	29	22	14	6	-36.4%
12	Mitsubishi Electric Corporation	65	25	24	15	1	-37.5%
13	DELTA ELECTRONICS, INC.	64	9	21	22	12	+4.8%
14	Rolls-Royce North American Technologies Inc.	53	14	22	13	4	-40.9%
15	MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.	51	19	17	13	2	-23.5%
16	ECP Entwicklungsgesellschaft mbH	49	12	16	15	6	-6.2%
17	SIEMENS ENERGY GLOBAL GMBH & CO. KG	45	13	23	7	2	-69.6%
18	Dyson Technology Limited	44	8	17	16	3	-5.9%
19	Rolls-Royce Corporation	44	22	16	6	·	-62.5%
20	GE Infrastructure Technology LLC	39	·	14	23	2	+64.3%
21	Hunter Fan Company	36	16	15	5	·	-66.7%
22	BorgWarner Inc.	35	14	13	6	2	-53.8%
23	ebm-papst Mulfingen GmbH & Co. KG	34	15	9	7	3	-22.2%
24	KSB SE & Co. KGaA	34	5	15	10	4	-33.3%
25	DAIKIN INDUSTRIES, LTD.	34	9	10	10	5	0.0%