D01D 4/02
Spinnerettes
Official title: Spinnerettes (alloys therefor C22C)
D01D4/02 (Spinnerettes) appears on 447 US grants and 376 published applications in this corpus.
Search patents in D01D- Granted patents
- 447
- Published applications
- 376
- Assignees
- 264
- Inventors
- 964
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 15 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 12 | 0 |
| 1996 | 6 | 0 |
| 1997 | 14 | 0 |
| 1998 | 10 | 0 |
| 1999 | 15 | 0 |
| 2000 | 7 | 0 |
| 2001 | 12 | 2 |
| 2002 | 11 | 14 |
| 2003 | 9 | 11 |
| 2004 | 12 | 11 |
| 2005 | 7 | 15 |
| 2006 | 7 | 9 |
| 2007 | 6 | 9 |
| 2008 | 4 | 14 |
| 2009 | 4 | 14 |
| 2010 | 7 | 8 |
| 2011 | 12 | 10 |
| 2012 | 2 | 15 |
| 2013 | 11 | 10 |
| 2014 | 17 | 13 |
| 2015 | 8 | 11 |
| 2016 | 11 | 11 |
| 2017 | 7 | 25 |
| 2018 | 6 | 30 |
| 2019 | 10 | 19 |
| 2020 | 25 | 23 |
| 2021 | 14 | 16 |
| 2022 | 17 | 24 |
| 2023 | 14 | 15 |
| 2024 | 18 | 21 |
| 2025 | 11 | 20 |
| 2026 | 11 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spinning head and relative apparatus for the production of filaments7 Jul 2026US 12,674,251 B2FARE' S.P.A. a socio unico
- Extrusion apparatus for turf fiber monofilament23 Jun 2026US 12,662,754 B2Polytex Sportbelage Produktions-GmbH
- Spinneret housing for use in the manufacture of polymer fibers, and method of use thereof2 Jun 2026US 12,644,204 B2Cytec Industries Inc.
- Meltblown die tip assembly2 Jun 2026US 12,644,205 B2Extrusion Group, LLC
- Method for producing composite fiber and composite spinneret24 Mar 2026US 12,584,246 B2Toray Industries, Inc.
- Configured depth capillary spinneret plate and filaments formed therefrom27 Aug 2026US 2026/0250884 A1Aladdin Manufacturing Corporation
- Melt-blown type non -woven fabrics making plant16 Jul 2026US 2026/0201609 A1Fratelli Ceccato Milano S.R.L.
- Extrusion apparatus for turf fiber monofilament2 Jul 2026US 2026/0185268 A1Polytex Sportbelage Produktions-GmbH
- Spin-die manifold for producing melt-spun filaments or yarns2 Jul 2026US 2026/0185269 A1TrüTzschler Group SE
- Electrospinning nozzle provided with gas ejection means4 Jun 2026US 2026/0152874 A1Jong-Su PARK
Most cited
By later US patents
- Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers991US 4,663,220 AKimberly-Clark Corporation · 1987
- Adhesive spray gun and nozzle attachment608US 4,785,996 ANordson Corporation · 1988
- Extrusion process using a central air jet289US 4,818,464 AKimberly-Clark Corporation · 1989
- Process and apparatus for the production of nanofibers212US 6,520,425 B1The University of Akron · 2003
- Process and apparatus for the production of nanofibers176US 6,382,526 B1The University of Akron · 2002