A24D 3/0279
With tubes
Official title: {with tubes}
A24D3/0279 (With tubes) appears on 40 US grants and 79 published applications in this corpus.
Search patents in A24D- Granted patents
- 40
- Published applications
- 79
- Assignees
- 26
- Inventors
- 152
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 4 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 6 |
| 2021 | 2 | 6 |
| 2022 | 2 | 8 |
| 2023 | 5 | 22 |
| 2024 | 5 | 7 |
| 2025 | 5 | 9 |
| 2026 | 10 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Aerosol generating article with front end plug4 Aug 2026US 12,696,926 B2Philip Morris Products S. A.
- Aerosol-generating article with upstream section, hollow tubular element and ventilation9 Jun 2026US 12,648,589 B2Philip Morris Products S. A.
- Cooling filter rod and application thereof2 Jun 2026US 12,642,295 B2China Tobacco Hunan Industrial Co., Ltd.
- Aerosol-generating article with upstream section, hollow tubular element and ventilation10 Sep 2026US 2026/0262706 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
- Flavor inhalation article30 Jul 2026US 2026/0215488 A1Japan Tobacco Inc.
Most cited
By later US patents
- Method for making a hollow filter rod22US 4,179,323 ALiggett Group Inc. · 1979
- Filtered cigarette comprising a tubular element in filter16US 10,609,955 B2R. J. Reynolds Tobacco Company · 2020
- Cigarette filter10US 4,109,666 ALiggett Group Inc. · 1978
- Method and apparatus for making a hollow filter and a filter rod8US 4,024,012 ALiggett & Myers Incorporated · 1977
- Cigarette filter and filter cigarette8US 4,291,712 ASigarettenfabriek Ed. Laurens B.V. · 1981