D01F 13/04
Recovery of starting material, waste material or solvents during the manufacture of
Official title: of synthetic polymers
D01F13/04 (Recovery of starting material, waste material or solvents during the manufacture of) appears on 43 US grants and 51 published applications in this corpus.
Search patents in D01F- Granted patents
- 43
- Published applications
- 51
- Assignees
- 48
- Inventors
- 166
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 3 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 3 |
| 2022 | 2 | 5 |
| 2023 | 1 | 4 |
| 2024 | 7 | 4 |
| 2025 | 1 | 6 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of making articles from recyclable fabrics6 Jan 2026US 12,515,378 B2Lubrizol Advanced Materials, Inc.
- Continuous process for recycling11 Nov 2025US 12,467,162 B2Teijin Aramid B.V.
- Method of recycling high relative viscosity nylon17 Sep 2024US 12,091,515 B2Inv Nylon Polymers Americas, LLC
- Integrated and improved process for the production of acrylic fibers17 Sep 2024US 12,091,779 B2Montefibre Mae Technologies S.r.l.
- Recycled separable multi-filament parallel yarns and woven fabric thereof13 Aug 2024US 12,060,661 B2
- Methods for producing liquid crystal polymer filaments26 Mar 2026US 2026/0084358 A1Kuraray Co., Ltd.
- Polyurethane elastic fiber25 Dec 2025US 2025/0389056 A1
- Method for isolating fibers polylactic acid-based from a mixture of textile fibers and recovery of the latter no longer containing polylactic acid11 Dec 2025US 2025/0376569 A1Noosa
- Method for producing colored yarns and/or colored fabrics in particular without or with only limited amount of wastewater discharge25 Sep 2025US 2025/0297407 A1Zeland Textech GmbH
- Method for regenerating carbon fiber bundle and apparatus for regenerating carbon fiber bundle24 Jul 2025US 2025/0236993 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Method for recovering terephthalic acid and ethylene glycol from polyester materials32US 3,952,053 ASafetech, Inc. · 1976
- Process for recycling multicomponent mixed polymer wastes15US 5,565,158 ABASF SE · 1996
- Solution spinning of UHMW poly (alpha-olefin) with recovery and recycling of volatile spinning solvent12US 7,147,807 B2Honeywell International Inc. · 2006
- Process for producing wholly aromatic polyamide fibers10US 4,073,837 ATeitin Limited · 1978
- Monomer exhaust system9US 5,219,585 ABASF SE · 1993