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E04G 21/122

Machines for joining reinforcing bars

Official title: {Machines for joining reinforcing bars}

E04G21/122 (Machines for joining reinforcing bars) appears on 309 US grants and 317 published applications in this corpus.

Search patents in E04G

Granted patents: 309
Published applications: 317
Assignees: 70
Inventors: 304
Latest grant: 8 Sep 2026

Filings by year

E04G 21/122: granted patents and published applications per publication year
Year	Granted patents	Published applications
1978	1	0
1979	0	0
1980	0	0
1981	0	0
1982	2	0
1983	0	0
1984	1	0
1985	2	0
1986	0	0
1987	3	0
1988	3	0
1989	5	0
1990	3	0
1991	3	0
1992	1	0
1993	2	0
1994	5	0
1995	2	0
1996	6	0
1997	7	0
1998	5	0
1999	12	0
2000	2	0
2001	2	1
2002	3	3
2003	1	4
2004	4	4
2005	2	6
2006	6	6
2007	4	4
2008	5	8
2009	0	11
2010	2	7
2011	9	9
2012	6	8
2013	7	2
2014	6	6
2015	6	6
2016	9	12
2017	5	5
2018	4	19
2019	11	15
2020	15	26
2021	13	29
2022	26	23
2023	22	35
2024	35	26
2025	20	17
2026	21	25

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

Subgroups

Granted patents

E04G 21/123Wire twisting tools258

Recent patents

Most cited

By later US patents