D01F 6/52
Of polymers of unsaturated carboxylic acids or unsaturated esters
Official title: of polymers of unsaturated carboxylic acids or unsaturated esters
D01F6/52 (Of polymers of unsaturated carboxylic acids or unsaturated esters) appears on 37 US grants and 51 published applications in this corpus.
Search patents in D01F- Granted patents
- 37
- Published applications
- 51
- Assignees
- 55
- Inventors
- 171
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 3 | 4 |
| 2013 | 2 | 3 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 4 |
| 2018 | 2 | 3 |
| 2019 | 3 | 1 |
| 2020 | 1 | 4 |
| 2021 | 2 | 3 |
| 2022 | 1 | 5 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Scented antibacterial nanofibrous layer28 Oct 2025US 12,453,695 B2Amirkabir University of Technology
- Non-woven fiber membranes7 Jan 2025US 12,186,713 B2Merck Millipore Ltd.
- Fibrous electrode material, preparation and application thereof7 Jan 2025US 12,191,503 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Extruded ceramic nanofibers and derived materials29 Oct 2024US 12,129,211 B2The United States of America as represented by the Secretary of the Air Force
- Fibrous elements comprising a non-hydroxyl polymer and methods for making same3 Oct 2023US 11,773,248 B2The Procter & Gamble Company
- Negative electrode active material for rechargeable lithium battery, method for preparing the same, negative electrode including the same, and rechargeable lithium battery including the same15 Jan 2026US 2026/0018612 A1Samsung SDI.Co., Ltd.
- Ionomer-Containing Polymeric Monofilament Having a Silicone Oil Coated Surface27 Nov 2025US 2025/0361654 A1Celanese Xingda Filaments Co., Ltd
- Extruded Ceramic Nanofibers and Derived Materials26 Dec 2024US 2024/0425418 A1Government of the United States as Represented by the Secretary of the Air Force
- Compositions comprising electrohydrodynamically obtained fibres for administration of specific dosages of an active substance to skin or mucosa22 Feb 2024US 2024/0058276 A1Afyx Therapeutics
- Self-healable chemical detecting sensor embedding transition metal-adsorbed paa-pva-borax fiber-gel14 Dec 2023US 2023/0400415 A1UIF (University Industry Foundation), Yonsei University
Most cited
By later US patents
- Methods of making self-reinforced composition of amorphous thermoplastics72US 5,679,299 ANorthwestern University · 1997
- Orthopedic implant with self-reinforced mantle68US 5,507,814 ANorthwestern University · 1996
- Biodegradable fiber and non-woven fabric68US 6,045,908 AChisso Corporation · 2000
- Pressure sensitive adhesive fibers with a reinforcing material55US 6,994,904 B23M Innovative Properties Company · 2006
- Fibers comprising starch and polymers48US 6,818,295 B2The Procter & Gamble Company · 2004