B08B 9/04

Using cleaning devices introduced into and moved along the pipes

Official title: using cleaning devices introduced into and moved along the pipes

B08B9/04 (Using cleaning devices introduced into and moved along the pipes) appears on 1,940 US grants and 1,673 published applications in this corpus.

Search patents in B08B

Granted patents: 1,940
Published applications: 1,673
Assignees: 948
Inventors: 3,198
Latest grant: 6 Oct 2026

Filings by year

B08B 9/04: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	11	0
1977	14	0
1978	10	0
1979	8	0
1980	12	0
1981	15	0
1982	10	0
1983	18	0
1984	12	0
1985	17	0
1986	18	0
1987	24	0
1988	16	0
1989	16	0
1990	19	0
1991	29	0
1992	32	0
1993	32	0
1994	33	0
1995	46	0
1996	21	0
1997	43	0
1998	33	0
1999	44	0
2000	40	0
2001	31	11
2002	41	28
2003	44	41
2004	27	39
2005	25	44
2006	32	51
2007	19	35
2008	22	43
2009	22	48
2010	31	62
2011	46	49
2012	30	59
2013	55	55
2014	49	71
2015	52	52
2016	51	87
2017	67	80
2018	60	110
2019	88	90
2020	87	123
2021	89	113
2022	82	110
2023	98	91
2024	93	76
2025	87	66
2026	39	39

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

Using cleaning devices introduced into and moved along the pipes

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