A24D 3/16
Of inorganic materials
Official title: of inorganic materials
A24D3/16 (Of inorganic materials) appears on 332 US grants and 407 published applications in this corpus.
Search patents in A24D- Granted patents
- 332
- Published applications
- 407
- Assignees
- 138
- Inventors
- 797
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 8 |
| 2003 | 4 | 16 |
| 2004 | 8 | 19 |
| 2005 | 6 | 34 |
| 2006 | 4 | 33 |
| 2007 | 6 | 28 |
| 2008 | 2 | 15 |
| 2009 | 12 | 16 |
| 2010 | 19 | 19 |
| 2011 | 16 | 15 |
| 2012 | 12 | 20 |
| 2013 | 19 | 12 |
| 2014 | 5 | 15 |
| 2015 | 16 | 18 |
| 2016 | 13 | 16 |
| 2017 | 13 | 10 |
| 2018 | 6 | 11 |
| 2019 | 12 | 11 |
| 2020 | 10 | 11 |
| 2021 | 7 | 13 |
| 2022 | 7 | 15 |
| 2023 | 10 | 9 |
| 2024 | 6 | 20 |
| 2025 | 3 | 12 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Consumable for an aerosol provision system11 Aug 2026US 12,702,155 B2Nicoventures Trading Limited
- Non-combustible aerosol delivery system for filtering exhalate11 Aug 2026US 12,702,159 B2Nicoventures Trading Limited
- Harm-reducing cigarette filter, preparation method and application thereof9 Jun 2026US 12,648,590 B2Changde Jizhi Biological Technology Co., Ltd
- Paper tube for smoking articles with flavored sheet, and smoking article31 Mar 2026US 12,588,701 B2Kt&G Corporation
- Device for filtering smoke17 Mar 2026US 12,575,600 B2
- Filter element for a water pipe8 Oct 2026US 2026/0305690 A1
- Multi-filter device for hoffmann compounds in gaseous media10 Sep 2026US 2026/0262711 A1Compania Industrial De Tabacos Monte Paz S.A.
- Rod filters having high hardness values27 Aug 2026US 2026/0248178 A1Eastman Chemical Company
- Non-combustion type flavor inhalation article20 Aug 2026US 2026/0240229 A1Japan Tobacco Inc.
- Evaporator for extracting and filtering active substances from biological materials by heating6 Aug 2026US 2026/0223929 A1Bg Braingate Technology GmbH
Most cited
By later US patents
- Cigarette filter308US 5,360,023 AR. J. Reynolds Tobacco Company · 1994
- Cigarette223US 5,271,419 AR. J. Reynolds Tobacco Company · 1993
- Tobacco treatment process185US 5,121,757 AR. J. Reynolds Tobacco Company · 1992
- Filter material for reducing harmful substances in tobacco smoke123US 6,591,839 B22003
- Cigarette filter115US 5,568,819 AR. J. Reynolds Tobacco Company · 1996