D02G 1/12
Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent
Official title: using stuffer boxes
D02G1/12 (Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent) appears on 304 US grants and 133 published applications in this corpus.
Search patents in D02G- Granted patents
- 304
- Published applications
- 133
- Assignees
- 130
- Inventors
- 491
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 23 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 4 |
| 2003 | 4 | 5 |
| 2004 | 3 | 7 |
| 2005 | 1 | 10 |
| 2006 | 6 | 7 |
| 2007 | 9 | 7 |
| 2008 | 5 | 4 |
| 2009 | 6 | 5 |
| 2010 | 4 | 1 |
| 2011 | 1 | 3 |
| 2012 | 2 | 4 |
| 2013 | 2 | 5 |
| 2014 | 3 | 8 |
| 2015 | 3 | 10 |
| 2016 | 8 | 4 |
| 2017 | 3 | 7 |
| 2018 | 8 | 6 |
| 2019 | 4 | 2 |
| 2020 | 2 | 8 |
| 2021 | 3 | 3 |
| 2022 | 2 | 3 |
| 2023 | 5 | 6 |
| 2024 | 3 | 5 |
| 2025 | 3 | 3 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymer fibers for concrete reinforcement8 Sep 2026US 12,729,294 B2Sika Technology AG
- Method for operating a crimping apparatus, and crimping apparatus21 Jul 2026US 12,686,956 B2Oerlikon Textile GmbH & Co.KG
- Method for producing a crimped composite thread16 Jun 2026US 12,655,544 B2Oerlikon Textile GmbH & Co.KG
- Apparatus and method for producing a crimped composite thread27 Jan 2026US 12,534,830 B2Oerlikon Textile GmbH & Co.KG
- Texturing device and texturing method6 Jan 2026US 12,516,447 B2STC Spinnzwim GmbH
- Cellulose acetate fibers in nonwoven fabrics20 Aug 2026US 2026/0242984 A1Eastman Chemical Company
- Cellulose acetate fibers in nonwoven fabrics5 Mar 2026US 2026/0062837 A1Eastman Chemical Company
- On-line crimp control and measurement for tow26 Feb 2026US 2026/0055540 A1Acetate International LLC
- On-line inspection of cellulose acetate tow26 Feb 2026US 2026/0055550 A1Acetate International LLC
- Artificial turf with texturized and non-texturized fibers15 Jan 2026US 2026/0015804 A1Apt Asia Pacific Pty. Ltd.
Most cited
By later US patents
- Fiber bundle81US 9,394,633 B2ES FiberVisions ApS · 2016
- Method for improving the crimping of polyolefin filter tow52US 4,925,602 AFilter Materials Limited · 1990
- Apparatus for crimping tow including stuffer box, crimping rollers and molding rollers50US 5,025,538 AHoechst Celanese Corporation · 1991
- Novel wear-resistant laser-engraved ceramic or metallic carbide surfaces for friction rolls for working elongate members, method for producing same and method for working elongate members using the novel friction roll46US 4,794,680 AUnion Carbide Corporation · 1989
- Lubricant impregnated fibers and processes for preparation thereof43US 5,677,058 AEastman Chemical Company · 1997