D01F 6/22
From polystyrene
Official title: from polystyrene
D01F6/22 (From polystyrene) appears on 38 US grants and 38 published applications in this corpus.
Search patents in D01F- Granted patents
- 38
- Published applications
- 38
- Assignees
- 36
- Inventors
- 136
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 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 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 4 |
| 2014 | 0 | 4 |
| 2015 | 2 | 1 |
| 2016 | 2 | 6 |
| 2017 | 2 | 2 |
| 2018 | 4 | 3 |
| 2019 | 2 | 1 |
| 2020 | 1 | 4 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electro-spun sulfur wire for fabricating mattes of lithium sulfur batteries23 Sep 2025US 12,424,617 B2University of Pittsburgh—Of the Commonwealth System of Higher Education
- Water washing device for carbon fiber filament and method of water washing12 Aug 2025US 12,385,164 B2Formosa Plastics Corporation
- Emulsion composition, polystyrene nano-fiber, polystyrene nano-fiber product, preparation method, and use thereof11 Mar 2025US 12,247,119 B2Jiangsu Guowang High-Technique Fiber Co., Ltd.
- Networked polymeric nanofibers, process for producing same, gas adsorbent, and gas separation material1 Oct 2024US 12,104,283 B2National Institute for Materials Science
- Active yarns and textiles for the stabilization and controlled release of active compounds10 Oct 2023US 11,780,971 B2MATERIAS S.r.l.
- Novel electro-spun sulfur wire for fabricating mattes of lithium-sulfur batteries5 Feb 2026US 2026/0038808 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Water washing device for carbon fiber filament and method of water washing26 Jan 2023US 2023/0022309 A1Formosa Plastics Corporation
- Emulsion composition, polystyrene nano-fiber, polystyrene nano-fiber product, preparation method, and use thereof31 Mar 2022US 2022/0098395 A1Jiangsu Guowang High-Technique Fiber Co., Ltd.
- Active yarns and textiles for the stabilization and controlled release of active compounds21 Oct 2021US 2021/0324151 A1MATERIAS S.r.l.
- Method to fabricate glassy-metal polymer composites1 Oct 2020US 2020/0307057 A1Khalifa University of Science and Technology
Most cited
By later US patents
- Styrene-based resin composition50US 5,166,238 AIdemitsu Kosan Co., Ltd. · 1992
- Activated carbon-containing fibrids33US 5,482,773 AE. I. Du Pont de Nemours and Company · 1996
- Nonwoven fabrics22US 5,156,797 AIdemitsu Kosan Co., Ltd. · 1992
- Manufacture of fibrids from polymers11US 4,224,259 ABASF SE · 1980
- Fibre-forming process and fibres produced by the process11US 9,920,454 B2Heiq Pty Ltd · 2018