A24D 3/064
Having non-circular cross-section
Official title: {having non-circular cross-section}
A24D3/064 (Having non-circular cross-section) appears on 26 US grants and 48 published applications in this corpus.
Search patents in A24D- Granted patents
- 26
- Published applications
- 48
- Assignees
- 21
- Inventors
- 94
- Latest grant
- 5 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 6 |
| 2003 | 5 | 3 |
| 2004 | 3 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 4 |
| 2015 | 0 | 4 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 5 | 3 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 3 |
| 2024 | 1 | 5 |
| 2025 | 0 | 3 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biodegradable cigarette filter5 Mar 2024US 11,918,036 B2R. J. Reynolds Tobacco Company
- Medium dpf and total denier cellulose acetate tow19 Sep 2023US 11,758,939 B2Acetate International LLC
- Modified cross-section lyocell material for tobacco filter, and preparation method therefor31 Aug 2021US 11,103,003 B2Kolon Industries, Inc.
- Fibers with surface markings used for coding22 Oct 2019US 10,452,873 B2Eastman Chemical Company
- Fibers with physical features used for coding13 Nov 2018US 10,127,410 B2Eastman Chemical Company
- Cellulose acetate filaments having a cross-sectional shape with a specific surface area index20 Aug 2026US 2026/0240230 A1Acetate International LLC
- Cellulose acetate filaments having a cross-sectional shape with a specific surface area index20 Aug 2026US 2026/0240231 A1Acetate International LLC
- Method for producing hollow filter rod of pla fiber9 Jul 2026US 2026/0191255 A1China Tobacco Yunnan Industrial Co., Ltd
- Replaceable filtration system and apparatus11 Jun 2026US 2026/0157427 A1Altria Client Services LLC
- Filter comprising a paper substrate comprising a monolayer base web with different fibrous portions7 May 2026US 2026/0123662 A1
Most cited
By later US patents
- High efficiency cigarette filters having shaped microcavity fibers impregnated with adsorbent or absorbent materials72US 6,584,979 B2Philip Morris Incorporated · 2003
- Method and apparatus for spinning a web of mixed fibers, and products produced therefrom55US 6,103,181 AFiltrona International Limited · 2000
- Method and apparatus for spinning a web of mixed fibers, and products produced therefrom54US 6,616,723 B2Filtrona Richmond, Inc. · 2003
- Process of making tri-arc filaments36US 8,790,556 B2Celanese Acetate LLC · 2014
- Method and apparatus for spinning a web of mixed fibers, and products produced therefrom34US 6,576,034 B2Filtrona Richmond, Inc. · 2003