D01F 6/16
From polymers of unsaturated carboxylic acids or unsaturated organic esters
Official title: from polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate
D01F6/16 (From polymers of unsaturated carboxylic acids or unsaturated organic esters) appears on 57 US grants and 92 published applications in this corpus.
Search patents in D01F- Granted patents
- 57
- Published applications
- 92
- Assignees
- 74
- Inventors
- 242
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 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 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 5 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 9 |
| 2015 | 1 | 7 |
| 2016 | 4 | 6 |
| 2017 | 3 | 4 |
| 2018 | 6 | 7 |
| 2019 | 4 | 6 |
| 2020 | 3 | 8 |
| 2021 | 2 | 5 |
| 2022 | 4 | 7 |
| 2023 | 3 | 1 |
| 2024 | 1 | 7 |
| 2025 | 6 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing ultra-fine and uniform acrylamide-based polymer hydrogel filament and use thereof29 Sep 2026US 12,747,517 B2Beijing Taijieweiye Technology Co., Ltd
- High-porosity nanofiber nonwovens as a support structure for stromal tissue28 Jul 2026US 12,691,203 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Polymer-derived ceramic fibers and methods of preparing the same14 Apr 2026US 12,600,676 B2Kansas State University Research Foundation
- Hollow fibres28 Oct 2025US 12,454,773 B2IP Ventures GmbH
- Hierarchical organic-inorganic composites synthesized by electrospinning fibers within a non-conductive and a conductive pre-ceramic gel26 Aug 2025US 12,398,073 B2Northwestern University
- Process for making a layered material comprising a micro- and/or nanostructured layer and adhesive sheet for use in said process19 Jun 2025US 2025/0196468 A1
- Hollow fibres24 Apr 2025US 2025/0129521 A1Kalvotech Limited
- Hollow fibres17 Apr 2025US 2025/0122647 A1Kalvotech Limited
- Hollow fibres3 Apr 2025US 2025/0109529 A1Kalvotech Limited
- Artificial hair fibers and hairpiece product27 Mar 2025US 2025/0101638 A1Denka Company Limited
Most cited
By later US patents
- Polymer compositions and absorbent fibers produced therefrom77US 5,151,465 AARCO Chemical Technology, L. P. · 1992
- Porous fiber71US 7,097,904 B2Toray Industries, Inc. · 2006
- Absorbent articles and methods for their preparation from crosslinkable solutions of synthetic carboxylic polyelectrolytes57US 3,980,663 AThe Dow Chemical Company · 1976
- Nanoporous fiber with unconnected pores for improved adsorptivity39US 7,666,504 B2Toray Industries, Inc. · 2010
- Absorbent articles and methods for their preparation33US 3,966,679 AThe Dow Chemical Company · 1976