A24D 3/06
Use of materials for tobacco smoke filters
A24D3/06 (Use of materials for tobacco smoke filters) appears on 1,097 US grants and 1,491 published applications in this corpus.
Search patents in A24D- Granted patents
- 1,097
- Published applications
- 1,491
- Assignees
- 330
- Inventors
- 2,181
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 15 | 0 |
| 1978 | 17 | 0 |
| 1979 | 19 | 0 |
| 1980 | 18 | 0 |
| 1981 | 20 | 0 |
| 1982 | 8 | 0 |
| 1983 | 9 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 12 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 22 | 0 |
| 1992 | 13 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 15 | 0 |
| 1996 | 14 | 0 |
| 1997 | 20 | 0 |
| 1998 | 27 | 0 |
| 1999 | 20 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 1 |
| 2002 | 5 | 19 |
| 2003 | 15 | 30 |
| 2004 | 19 | 30 |
| 2005 | 10 | 58 |
| 2006 | 9 | 47 |
| 2007 | 8 | 34 |
| 2008 | 8 | 37 |
| 2009 | 13 | 36 |
| 2010 | 30 | 31 |
| 2011 | 25 | 41 |
| 2012 | 21 | 61 |
| 2013 | 34 | 49 |
| 2014 | 22 | 64 |
| 2015 | 44 | 66 |
| 2016 | 36 | 46 |
| 2017 | 27 | 55 |
| 2018 | 30 | 53 |
| 2019 | 52 | 74 |
| 2020 | 41 | 75 |
| 2021 | 42 | 84 |
| 2022 | 47 | 85 |
| 2023 | 47 | 102 |
| 2024 | 66 | 135 |
| 2025 | 55 | 97 |
| 2026 | 43 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A24D 3/08Of organic materials as carrier or major constituent468
- A24D 3/16Of inorganic materials332
- A24D 3/061Containing additives entrapped within capsules, sponge-like material or the like, for further313
- A24D 3/14Of organic materials as additive313
- A24D 3/062Characterised by structural features166
- A24D 3/067Characterised by functional properties146
- A24D 3/12Of ion exchange materials26
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- Aerosol provision system8 Oct 2026US 2026/0305687 A1Nicoventures Trading Limited
- Smoking article8 Oct 2026US 2026/0305688 A1Altria Client Services LLC
- Filter element for a water pipe8 Oct 2026US 2026/0305690 A1
- Filter element for cigarettes1 Oct 2026US 2026/0293973 A1
- Eco-friendly filter for smoking article having disintegrability1 Oct 2026US 2026/0293974 A1Kolon Industries, Inc.
Most cited
By later US patents
- Cigarette filter308US 5,360,023 AR. J. Reynolds Tobacco Company · 1994
- Bioluminescent novelty items261US 5,876,995 A1999
- Cigarette223US 5,271,419 AR. J. Reynolds Tobacco Company · 1993
- Tobacco treatment process185US 5,121,757 AR. J. Reynolds Tobacco Company · 1992
- Cigarette182US 5,056,537 AR. J. Reynolds Tobacco Company · 1991