F16L 39/00

Joints or fittings for double-walled or multi-channel pipes or pipe assemblies

Official title: Joints or fittings for double-walled or multi-channel pipes or pipe assemblies {(quick-acting joints for double-walled or multi-channel pipes or pipe assemblies F16L37/56)}

F16L39/00 (Joints or fittings for double-walled or multi-channel pipes or pipe assemblies) appears on 1,291 US grants and 949 published applications in this corpus.

Search patents in F16L

Granted patents: 1,291
Published applications: 949
Assignees: 828
Inventors: 2,404
Latest grant: 22 Sep 2026

Filings by year

F16L 39/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	30	0
1977	19	0
1978	31	0
1979	9	0
1980	13	0
1981	22	0
1982	11	0
1983	13	0
1984	13	0
1985	18	0
1986	12	0
1987	20	0
1988	21	0
1989	23	0
1990	17	0
1991	16	0
1992	24	0
1993	21	0
1994	25	0
1995	35	0
1996	28	0
1997	19	0
1998	34	0
1999	27	0
2000	24	0
2001	19	8
2002	27	22
2003	29	21
2004	13	29
2005	17	28
2006	25	34
2007	14	21
2008	15	24
2009	17	43
2010	22	35
2011	24	44
2012	20	23
2013	27	31
2014	18	36
2015	33	50
2016	23	29
2017	39	48
2018	32	43
2019	46	50
2020	44	52
2021	46	63
2022	39	39
2023	42	54
2024	60	48
2025	45	41
2026	30	33

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

Joints or fittings for double-walled or multi-channel pipes or pipe assemblies

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