D01D 4/027
Spinnerettes containing inserts
Official title: {Spinnerettes containing inserts}
D01D4/027 (Spinnerettes containing inserts) appears on 17 US grants and 20 published applications in this corpus.
Search patents in D01D- Granted patents
- 17
- Published applications
- 20
- Assignees
- 21
- Inventors
- 46
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Feed spacer for reducing differential pressure of reverse osmosis element, and formation nozzle7 Oct 2025US 12,434,193 B2LG Chem.Ltd.
- Spandex fiber dry spinning component and spinning part1 Oct 2024US 12,104,282 B2Zhengzhou Zhongyuan Spandex Eng. Tech Co., Ltd
- Multi-row coaxial melt-blown system23 Jul 2024US 12,043,920 B2Fratelli Ceccato Milano S.R.L.
- Producing fibers using spinnerets13 Jun 2023US 11,674,241 B2Saudi Arabian Oil Company
- Polymer coextrusion head with a dual-channel nozzle3 Jan 2023US 11,541,585 B2Polytex Sportbelage Produktions-GmbH
- Spinneret for multi-row coaxial spunbond and/or melt-blown type plant20 Nov 2025US 2025/0354298 A1Fratelli Ceccato Milano S.R.L.
- Spinneret for multi-row coaxial spunbond and/or melt-blown type plant18 Sep 2025US 2025/0290231 A1Fratelli Ceccato Milano S.R.L.
- Tube for multirow coaxial melt-blown system17 Apr 2025US 2025/0122656 A1Fratelli Ceccato Milano S.R.L.
- Spandex fiber dry spinning component and spinning part7 Sep 2023US 2023/0279584 A1Zhengzhou Zhongyuan Spandex Engineering Technology Co., Ltd
- Multi-row coaxial melt-blown system22 Dec 2022US 2022/0403556 A1Fratelli Ceccato Milano S.R.L.
Most cited
By later US patents
- Spinneret assembly26US 4,248,577 ARhone-Poulenc-Textile · 1981
- High strength, high modulus pitch-based carbon fiber12US 5,114,697 AToa Nenryo Kogyo Kabushiki Kaisha · 1992
- Apparatus and die cartridge assembly adapted for use therewith, and process for producing fibrous materials10US 7,722,347 B2Polymer Group, Inc. · 2010
- Material deposition device and method of use4US 9,775,694 B2American Dental Association Foundation · 2017
- Producing fibers using spinnerets2US 10,889,915 B2Saudi Arabian Oil Company · 2021