B23Q 1/50

With rotating pairs only , the rotating pairs being the first two

Official title: with rotating pairs only {, the rotating pairs being the first two elements of the mechanism}

B23Q1/50 (With rotating pairs only , the rotating pairs being the first two) appears on 1,204 US grants and 650 published applications in this corpus.

Search patents in B23Q

Granted patents: 1,204
Published applications: 650
Assignees: 738
Inventors: 2,189
Latest grant: 8 Sep 2026

Filings by year

B23Q 1/50: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	10	0
1977	20	0
1978	14	0
1979	13	0
1980	18	0
1981	20	0
1982	15	0
1983	18	0
1984	15	0
1985	25	0
1986	35	0
1987	36	0
1988	31	0
1989	40	0
1990	37	0
1991	26	0
1992	41	0
1993	27	0
1994	25	0
1995	28	0
1996	32	0
1997	31	0
1998	31	0
1999	33	0
2000	23	0
2001	29	7
2002	27	32
2003	33	35
2004	35	55
2005	34	23
2006	23	29
2007	15	18
2008	14	15
2009	14	12
2010	7	31
2011	12	25
2012	21	22
2013	16	19
2014	21	20
2015	11	39
2016	29	26
2017	26	19
2018	16	28
2019	29	33
2020	26	19
2021	23	36
2022	18	27
2023	20	26
2024	30	23
2025	17	15
2026	14	16

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

With rotating pairs only , the rotating pairs being the first two

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