B21D 39/04

Application of procedures in order to connect objects or parts: of tubes

Official title: of tubes with tubes; of tubes with rods {(crimped pipe joints as such F16L13/14)}

B21D39/04 (Application of procedures in order to connect objects or parts: of tubes) appears on 1,093 US grants and 876 published applications in this corpus.

Search patents in B21D

Granted patents: 1,093
Published applications: 876
Assignees: 592
Inventors: 1,797
Latest grant: 8 Sep 2026

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B21D 39/04: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	6	0
1977	17	0
1978	10	0
1979	10	0
1980	12	0
1981	15	0
1982	21	0
1983	9	0
1984	11	0
1985	18	0
1986	23	0
1987	20	0
1988	20	0
1989	22	0
1990	8	0
1991	15	0
1992	15	0
1993	13	0
1994	11	0
1995	7	0
1996	5	0
1997	17	0
1998	14	0
1999	17	0
2000	19	0
2001	19	11
2002	36	23
2003	16	22
2004	24	32
2005	16	27
2006	23	31
2007	23	31
2008	16	26
2009	10	13
2010	15	32
2011	23	28
2012	24	34
2013	23	23
2014	22	49
2015	37	28
2016	29	45
2017	30	37
2018	28	53
2019	48	42
2020	41	70
2021	50	43
2022	53	39
2023	43	33
2024	41	39
2025	33	35
2026	15	30

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

Application of procedures in order to connect objects or parts: of tubes

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