D02J 1/22
Stretching or tensioning, shrinking or relaxing
Official title: Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch (stretch spinning D01D5/12)
D02J1/22 (Stretching or tensioning, shrinking or relaxing) appears on 475 US grants and 330 published applications in this corpus.
Search patents in D02J- Granted patents
- 475
- Published applications
- 330
- Assignees
- 266
- Inventors
- 1,018
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 14 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 16 | 0 |
| 1994 | 22 | 0 |
| 1995 | 13 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 16 | 0 |
| 2001 | 8 | 2 |
| 2002 | 8 | 6 |
| 2003 | 5 | 4 |
| 2004 | 6 | 7 |
| 2005 | 6 | 11 |
| 2006 | 4 | 8 |
| 2007 | 3 | 6 |
| 2008 | 5 | 7 |
| 2009 | 5 | 12 |
| 2010 | 8 | 14 |
| 2011 | 5 | 16 |
| 2012 | 13 | 12 |
| 2013 | 6 | 22 |
| 2014 | 19 | 16 |
| 2015 | 12 | 18 |
| 2016 | 19 | 17 |
| 2017 | 15 | 11 |
| 2018 | 15 | 24 |
| 2019 | 7 | 16 |
| 2020 | 13 | 19 |
| 2021 | 17 | 19 |
| 2022 | 16 | 23 |
| 2023 | 8 | 19 |
| 2024 | 11 | 10 |
| 2025 | 12 | 10 |
| 2026 | 8 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D02J 1/228Stretching in two or more steps, with or without intermediate steps72
- D02J 1/224Selection or control of the temperature during stretching51
- D02J 1/222Stretching in a gaseous atmosphere or in a fluid bed33
- D02J 1/225Mechanical characteristics of stretching apparatus32
- D02J 1/223Stretching in a liquid bath28
- D02J 1/229Relaxing26
- D02J 1/227Control of the stretching tension15
- D02J 1/221Preliminary treatments13
Recent patents
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- Method of manufacturing yarn and yarn obtained in that manner17 Feb 2026US 12,553,154 B2Aladdin Manufacturing Corporation
- Method of manufacturing yarn and yarn obtained in that manner4 Jun 2026US 2026/0152876 A1Aladdin Manufacturing Corporation
- A dichloromethane free process for making cellulose triacetate fiber6 Nov 2025US 2025/0341030 A1Eastman Chemical Company
- Stretch-processed yarn, fiber product, composite spinneret, and composite fiber production method6 Nov 2025US 2025/0341033 A1Toray Industries, Inc.
- Systems and methods for producing a bundle of filaments and/or a yarn7 Aug 2025US 2025/0250719 A1Aladdin Manufacturing Corporation
- Polytrimethylene terephthalate fiber and method for producing same24 Jul 2025US 2025/0236992 A1Teijin Frontier Co., Ltd.
Most cited
By later US patents
- Thermoplastic surgical suture with a melt fused length226US 4,832,025 AAmerican Cyanamid Company · 1989
- Fibers capable of spontaneously transporting fluids182US 5,972,505 AEastman Chemical Company · 1999
- Biodegradable fibers manufactured from thermoplastic starch and textile products and other articles manufactured from such fibers125US 6,218,321 B1Biotec Biologische Naturverpackungen GmbH & Co. KG · 2001
- Process of making fibers52US 5,611,981 AEastman Chemical Company · 1997
- Controlled tow stretcher43US 4,095,318 AAllied Chemical Corporation · 1978