Patent Theme

Internal Flow Path Optimization

Techniques and structures within heat exchangers designed to enhance heat transfer efficiency by controlling and optimizing fluid flow, including baffle arrangements, jet impingement, and condensate management.

11,126 US filings from 1,871 companies since 2023 · 2023: 2,895 · 2024: 3,533 · 2025: 3,258 · 2026 YTD: 1,440

Steam / Gas TurbinesGas Turbine PlantsHeat Exchangers (Specific Types)Heat Exchange Components

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	965	265	280	300	120	+7.1%
2	RTX Corporation	567	24	185	210	148	+13.5%
3	Pratt & Whitney Canada Corp.	454	132	132	109	81	-17.4%
4	HAMILTON SUNDSTRAND CORPORATION	359	96	125	99	39	-20.8%
5	Rolls-Royce PLC	273	63	98	83	29	-15.3%
6	SAFRAN AIRCRAFT ENGINES	269	99	98	58	14	-40.8%
7	RAYTHEON TECHNOLOGIES CORPORATION	218	122	82	14	·	-82.9%
8	Mitsubishi Electric Corporation	152	49	59	39	5	-33.9%
9	MITSUBISHI HEAVY INDUSTRIES, LTD.	146	46	46	41	13	-10.9%
10	CARRIER CORPORATION	122	44	30	36	12	+20.0%
11	DELL PRODUCTS L.P.	118	25	53	33	7	-37.7%
12	LG ELECTRONICS INC.	116	28	49	23	16	-53.1%
13	The Boeing Company	115	29	37	34	15	-8.1%
14	Safran Nacelles	99	24	36	23	16	-36.1%
15	GE Infrastructure Technology LLC	98	·	38	53	7	+39.5%
16	Hanon Systems	97	19	28	33	17	+17.9%
17	DAIKIN INDUSTRIES, LTD.	91	28	33	24	6	-27.3%
18	IHI Corporation	90	28	22	28	12	+27.3%
19	MAHLE International GmbH	88	21	23	32	12	+39.1%
20	ROHR, INC.	88	31	29	22	6	-24.1%
21	Rolls-Royce North American Technologies Inc.	78	18	20	33	7	+65.0%
22	Valeo Systemes Thermiques	73	11	22	30	10	+36.4%
23	DANFOSS A/S	67	16	21	20	10	-4.8%
24	MTU Aero Engines AG	66	18	21	21	6	0.0%
25	Collins Engine Nozzles, Inc.	65	21	30	13	1	-56.7%