A24D 3/00

Tobacco smoke filters

Official title: Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes

A24D3/00 (Tobacco smoke filters) appears on 2,137 US grants and 2,566 published applications in this corpus.

Search patents in A24D

Granted patents: 2,137
Published applications: 2,566
Assignees: 492
Inventors: 3,511
Latest grant: 22 Sep 2026

Filings by year

A24D 3/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	32	0
1977	47	0
1978	33	0
1979	30	0
1980	32	0
1981	48	0
1982	29	0
1983	29	0
1984	26	0
1985	51	0
1986	38	0
1987	51	0
1988	33	0
1989	27	0
1990	19	0
1991	30	0
1992	22	0
1993	20	0
1994	16	0
1995	32	0
1996	23	0
1997	29	0
1998	41	0
1999	32	0
2000	19	0
2001	15	4
2002	12	25
2003	23	40
2004	26	56
2005	15	75
2006	13	68
2007	15	50
2008	12	59
2009	20	49
2010	40	49
2011	36	67
2012	35	92
2013	58	79
2014	37	109
2015	72	127
2016	58	91
2017	52	85
2018	61	101
2019	85	129
2020	75	159
2021	79	160
2022	95	168
2023	96	195
2024	132	228
2025	109	162
2026	77	139

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

Tobacco smoke filters

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