D01F 6/20
From polymers of cyclic compounds with one carbon-to-carbon double bond in the
Official title: from polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
D01F6/20 (From polymers of cyclic compounds with one carbon-to-carbon double bond in the) appears on 55 US grants and 62 published applications in this corpus.
Search patents in D01F- Granted patents
- 55
- Published applications
- 62
- Assignees
- 57
- Inventors
- 219
- Latest grant
- 14 Apr 2026
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 | 1 | 0 |
| 1995 | 2 | 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 2 | 3 |
| 2013 | 2 | 4 |
| 2014 | 0 | 5 |
| 2015 | 2 | 4 |
| 2016 | 5 | 7 |
| 2017 | 2 | 4 |
| 2018 | 4 | 4 |
| 2019 | 2 | 2 |
| 2020 | 3 | 8 |
| 2021 | 1 | 1 |
| 2022 | 3 | 5 |
| 2023 | 4 | 4 |
| 2024 | 2 | 0 |
| 2025 | 4 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymer-derived ceramic fibers and methods of preparing the same14 Apr 2026US 12,600,676 B2Kansas State University Research Foundation
- 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
- Method for preparation of plasma-treated nanofiber-based hydrogen gas sensing material25 Mar 2025US 12,258,703 B2Chongqing University
- 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.
- 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
- Precursor fibers of lignin-based carbon fibers, their production and use15 Jan 2026US 2026/0015774 A1
- Method for preparing palladium-loaded heterojunction composite framework aerogel and method for preparing hydrogen sensor26 Oct 2023US 2023/0340703 A1Yangtze Delta Region Institute (Quzhou) , University of Electronic Science and Technology of China
- Method for preparation of plasma-treated nanofiber-based hydrogen gas sensing material13 Apr 2023US 2023/0116126 A1Chongqing University
- Method for processing boron nitride nanotube and liquid crystal composition and boron nitride nanotube fiber therefrom16 Mar 2023US 2023/0085533 A1Korea Institute 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
- Films and extrusions of cured crosslinked vinyl lactam polymer and method of preparation31US 5,354,823 AISP Investments Inc. · 1994
- Nonwoven fabrics22US 5,156,797 AIdemitsu Kosan Co., Ltd. · 1992
- Manufacture of fibrids from polymers11US 4,224,259 ABASF SE · 1980