B01D 71/403
Polymers based on the polymerisation of maleic acid or derivatives thereof
Official title: {Polymers based on the polymerisation of maleic acid or derivatives thereof}
B01D71/403 (Polymers based on the polymerisation of maleic acid or derivatives thereof) appears on 37 US grants and 35 published applications in this corpus.
Search patents in B01D- Granted patents
- 37
- Published applications
- 35
- Assignees
- 31
- Inventors
- 114
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 5 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 3 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 2 | 2 |
| 2020 | 4 | 4 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Functional fluoropolymers28 Jan 2025US 12,209,152 B2Arkema Inc.
- Method for creating a porous film through aqueous phase separation12 Nov 2024US 12,139,587 B2NX Filtration B.V.
- Separator for rechargeable battery and lithium rechargeable battery comprising same10 Sep 2024US 12,087,966 B2Samsung SDI.Co., Ltd.
- Porous fluorine-based resin composite membrane and manufacturing method therefor23 May 2023US 11,654,403 B2LG Chem.Ltd.
- Aqueous phase separation method11 Oct 2022US 11,465,103 B2Universiteit Twente
- Functional fluoropolymers5 Jun 2025US 2025/0179230 A1Arkema Inc.
- Microporous Membrane With Enhanced Electrolyte Wettability30 Nov 2023US 2023/0383105 A1Celanese International Corporation
- Methods for coupling a ligand to a composite material29 Dec 2022US 2022/0410076 A1
- Method for creating a porous film through aqueous phase separation6 Jan 2022US 2022/0002508 A1Universiteit Twente
- Separator for rechargeable battery and lithium rechargeable battery comprising same15 Jul 2021US 2021/0218109 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Process for the manufacture of an ophthalmic molding244US 6,039,913 ANovartis AG · 2000
- Modified membranes85US 7,300,022 B2Siemens Water Technologies Corp. · 2007
- Polymeric membrane having maleic anhydride residues70US 4,407,975 AAgency of Industrial Science and Technology · 1983
- Modified membranes64US 6,884,350 B2U. S. Filter Wastewater Group, Inc. · 2005
- Pervaporation composite membranes58US 7,604,746 B2McMaster University · 2009