A47L 11/4013

Contaminants collecting devices, i.e. hoppers, tanks or the like

Official title: {Contaminants collecting devices, i.e. hoppers, tanks or the like}

A47L11/4013 (Contaminants collecting devices, i.e. hoppers, tanks or the like) appears on 1,207 US grants and 1,392 published applications in this corpus.

Search patents in A47L

Granted patents: 1,207
Published applications: 1,392
Assignees: 347
Inventors: 2,079
Latest grant: 6 Oct 2026

Filings by year

A47L 11/4013: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	9	0
1977	4	0
1978	13	0
1979	9	0
1980	11	0
1981	6	0
1982	10	0
1983	7	0
1984	6	0
1985	5	0
1986	7	0
1987	9	0
1988	9	0
1989	19	0
1990	14	0
1991	5	0
1992	8	0
1993	9	0
1994	10	0
1995	8	0
1996	9	0
1997	15	0
1998	16	0
1999	22	0
2000	23	0
2001	15	6
2002	14	13
2003	12	13
2004	6	15
2005	6	24
2006	11	26
2007	5	20
2008	11	31
2009	12	29
2010	24	21
2011	20	15
2012	15	35
2013	39	27
2014	26	34
2015	25	28
2016	29	49
2017	27	62
2018	48	68
2019	59	113
2020	67	88
2021	95	125
2022	86	110
2023	104	105
2024	90	130
2025	54	118
2026	44	87

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

Contaminants collecting devices, i.e. hoppers, tanks or the like

Filings by year

Subgroups

Recent patents

Most cited