A24D 3/0275
For filters with special features
Official title: {for filters with special features}
A24D3/0275 (For filters with special features) appears on 233 US grants and 343 published applications in this corpus.
Search patents in A24D- Granted patents
- 233
- Published applications
- 343
- Assignees
- 71
- Inventors
- 536
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 15 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 0 |
| 2004 | 1 | 8 |
| 2005 | 1 | 4 |
| 2006 | 2 | 10 |
| 2007 | 2 | 5 |
| 2008 | 1 | 4 |
| 2009 | 3 | 7 |
| 2010 | 3 | 6 |
| 2011 | 3 | 7 |
| 2012 | 7 | 13 |
| 2013 | 12 | 11 |
| 2014 | 5 | 22 |
| 2015 | 13 | 19 |
| 2016 | 9 | 19 |
| 2017 | 7 | 13 |
| 2018 | 12 | 13 |
| 2019 | 14 | 18 |
| 2020 | 13 | 19 |
| 2021 | 11 | 21 |
| 2022 | 13 | 21 |
| 2023 | 13 | 37 |
| 2024 | 19 | 23 |
| 2025 | 13 | 24 |
| 2026 | 18 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Manufacture of gas emission medium for enhancing migration amount of active ingredients15 Sep 2026US 12,733,671 B2Kt&G Corporation
- Aerosol generating article and system25 Aug 2026US 12,714,139 B2Kt&G Corporation
- Article for use in an aerosol provision system18 Aug 2026US 12,708,138 B2Nicoventures Trading Limited
- Smoking article and method for a cigar or cigarillo using optional second filter and slidable sleeve11 Aug 2026US 12,702,152 B1IP Trademark Holdings, Inc.
- Filter for smoking or vaping article comprising a two-layer material11 Aug 2026US 12,702,158 B2SWM Holdings US, LLC
- Aerosol-generating article with upstream section, hollow tubular element and ventilation10 Sep 2026US 2026/0262706 A1Philip Morris Products S. A.
- Positioning of segments for aerosol-generating articles with a positioning wheel having adjustable receiving positions27 Aug 2026US 2026/0248171 A1Philip Morris Products S. A.
- Filter element and method for manufacturing thereof27 Aug 2026US 2026/0248176 A1Philip Morris Products S. A.
- Filter element and method for manufacturing thereof27 Aug 2026US 2026/0248177 A1Philip Morris Products S. A.
- Rod filters having high hardness values27 Aug 2026US 2026/0248178 A1Eastman Chemical Company
Most cited
By later US patents
- Method and apparatus for incorporating objects into cigarette filters103US 7,115,085 B2R. J. Reynolds Tobacco Company · 2006
- Cigarettes and filter subassemblies with squeezable flavor capsule and methods of manufacture98US 7,878,962 B2Philip Morris USA Inc. · 2011
- Method and apparatus for producing tobacco smoke filter having improved tar/carbon monoxide ratio73US 4,508,525 AAmerican Filtrona Corporation · 1985
- Tobacco smoke filter having improved tar/carbon monoxide ratio72US 4,357,950 AAmerican Filtrona Corporation · 1982
- Equipment for insertion of objects into smoking articles68US 7,479,098 B2R. J. Reynolds Tobacco Company · 2009