D01F 2/30
By the dry spinning process
Official title: by the dry spinning process
D01F2/30 (By the dry spinning process) appears on 20 US grants and 19 published applications in this corpus.
Search patents in D01F- Granted patents
- 20
- Published applications
- 19
- Assignees
- 20
- Inventors
- 85
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 4 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cellulose acetate band, and method for producing cellulose acetate band31 Mar 2026US 12,590,387 B2Daicel Corporation
- Cellulose acetate fiber, cellulose acetate band, and method for manufacturing cellulose acetate band5 Mar 2024US 11,920,261 B2Daicel Corporation
- Spinning apparatus and spinning method12 Apr 2022US 11,299,823 B2Daicel Corporation
- Micro and nanofibers of polysaccharide based materials19 Feb 2019US 10,208,404 B2CLARCOR Inc.
- Nanofiber manufacturing method and nanofiber manufacturing device1 Jan 2019US 10,167,575 B2FUJIFILM Corporation
- 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
- Cellulose acetate fibers in nonwoven fabrics20 Aug 2026US 2026/0242984 A1Eastman Chemical Company
- Dry spinning of cellulose acetate fiber9 Jan 2025US 2025/0011975 A1Eastman Chemical Company
- Mattress assemblies and components including phase change19 May 2022US 2022/0154058 A1Dreamwell, Ltd.
Most cited
By later US patents
- Processing cellulose acetate formed articles using supercritical fluid19US 5,512,231 AHoechst Celanese Corporation · 1996
- Cellulose acetate fiber having non-circular cross section, multi-filaments thereof, and process for the production thereof17US 5,707,737 ATeijin Limited · 1998
- Process for spinning cellulose ester fibres16US 4,418,026 ACourtaulds Limited · 1983
- Cellulose acetate filaments, an optically isotropic spinning solution therefor, and use thereof for the production of filaments16US 5,449,555 ARhone-Poulenc Rhodia Aktiengesellschaft · 1995
- Filter tow and method for its manufacture as well as tobacco smoke filter element and method for its manufacture14US 5,427,852 ARhone-Poulenc Rhodia Aktiengesellschaft · 1995