A24D 3/0229
Filter rod forming processes
Official title: {Filter rod forming processes (A24D3/0275 takes precedence)}
A24D3/0229 (Filter rod forming processes) appears on 174 US grants and 233 published applications in this corpus.
Search patents in A24D- Granted patents
- 174
- Published applications
- 233
- Assignees
- 70
- Inventors
- 414
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 4 |
| 2005 | 1 | 4 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 4 |
| 2009 | 1 | 1 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 8 |
| 2013 | 1 | 12 |
| 2014 | 3 | 17 |
| 2015 | 9 | 10 |
| 2016 | 8 | 11 |
| 2017 | 5 | 13 |
| 2018 | 11 | 9 |
| 2019 | 11 | 17 |
| 2020 | 6 | 14 |
| 2021 | 13 | 20 |
| 2022 | 9 | 15 |
| 2023 | 14 | 16 |
| 2024 | 16 | 22 |
| 2025 | 13 | 14 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter for smoking or vaping article comprising a two-layer material11 Aug 2026US 12,702,158 B2SWM Holdings US, LLC
- Firm filter for aerosol-generating article7 Jul 2026US 12,672,671 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 comprising an aerosol-cooling element14 Apr 2026US 12,599,164 B2Philip Morris Products S. A.
- Article10 Mar 2026US 12,569,005 B2Nicoventures Trading Limited
- Manufacturing machine for rod used in flavor inhaler and manufacturing method for rod10 Sep 2026US 2026/0262709 A1Japan Tobacco Inc.
- Multi-filter device for hoffmann compounds in gaseous media10 Sep 2026US 2026/0262711 A1Compania Industrial De Tabacos Monte Paz S.A.
- Smoking Filter27 Aug 2026US 2026/0248173 A1Snap Wrap, LLC
- Filter element, mouthpiece and cooling element30 Jul 2026US 2026/0215489 A1Filtrona Pte. Ltd.
- Smoking tip with selectively infused flavor chamber16 Jul 2026US 2026/0198557 A1
Most cited
By later US patents
- Spunbond loop material for hook and loop fastening systems121US 5,669,900 AKimberly-Clark Worldwide, Inc. · 1997
- Method and apparatus for incorporating objects into cigarette filters103US 7,115,085 B2R. J. Reynolds Tobacco Company · 2006
- Smoking article with improved mouthend piece69US 4,903,714 AR. J. Reynolds Tobacco Company · 1990
- Equipment for insertion of objects into smoking articles68US 7,479,098 B2R. J. Reynolds Tobacco Company · 2009
- Apparatus for inserting objects into a filter component of a smoking article, and associated method48US 7,972,254 B2R. J. Reynolds Tobacco Company · 2011