F28F 1/10

Tubular elements and assemblies thereof with means for increasing heat-transfer area

Official title: Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F28F1/06, F28F1/08)

F28F1/10 (Tubular elements and assemblies thereof with means for increasing heat-transfer area) appears on 3,683 US grants and 4,584 published applications in this corpus.

Search patents in F28F

Granted patents: 3,683
Published applications: 4,584
Assignees: 1,735
Inventors: 8,801
Latest grant: 6 Oct 2026

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F28F 1/10: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	18	0
1977	19	0
1978	27	0
1979	29	0
1980	42	0
1981	36	0
1982	38	0
1983	23	0
1984	34	0
1985	18	0
1986	29	0
1987	41	0
1988	34	0
1989	34	0
1990	30	0
1991	49	0
1992	32	0
1993	43	0
1994	36	0
1995	36	0
1996	38	0
1997	44	0
1998	69	0
1999	58	0
2000	54	0
2001	72	20
2002	57	72
2003	61	92
2004	60	110
2005	69	141
2006	90	122
2007	61	168
2008	44	153
2009	45	195
2010	69	200
2011	71	202
2012	77	151
2013	74	209
2014	59	232
2015	102	222
2016	102	216
2017	165	243
2018	186	245
2019	227	245
2020	174	250
2021	183	218
2022	177	238
2023	153	201
2024	159	178
2025	150	163
2026	85	98

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Tubular elements and assemblies thereof with means for increasing heat-transfer area

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