B01D 71/78
Graft polymers
B01D71/78 (Graft polymers) appears on 113 US grants and 132 published applications in this corpus.
Search patents in B01D- Granted patents
- 113
- Published applications
- 132
- Assignees
- 95
- Inventors
- 380
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 1 | 4 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 2 | 4 |
| 2013 | 3 | 10 |
| 2014 | 5 | 4 |
| 2015 | 3 | 4 |
| 2016 | 4 | 4 |
| 2017 | 7 | 11 |
| 2018 | 6 | 10 |
| 2019 | 8 | 10 |
| 2020 | 12 | 9 |
| 2021 | 10 | 9 |
| 2022 | 5 | 9 |
| 2023 | 5 | 5 |
| 2024 | 4 | 8 |
| 2025 | 5 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyamide composite reverse osmosis membrane and preparation method thereof21 Apr 2026US 12,605,679 B2Hunan Keensen Technology Co., Ltd.
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same10 Mar 2026US 12,569,816 B2Vito NV
- Ceramic cation exchange materials6 Jan 2026US 12,515,176 B2Membrion, Inc.
- Minimally swellable biocompatible membrane and preparation method thereof29 Jul 2025US 12,371,518 B2Suzhou Zhongxing Medical Technology Co., Ltd.
- Fabrication of reinforced anion exchange membranes3 Jun 2025US 12,319,800 B2Hydrolite Ltd
- Ion permeable membrane20 Aug 2026US 2026/0242230 A1Idemitsu Kosan Co., Ltd.
- Ceramic cation exchange materials13 Aug 2026US 2026/0233171 A1Membrion, Inc.
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Jul 2026US 2026/0183722 A1Vito NV
- Poly(aryl piperidinium) copolymer ionomer grafted with propargyl group, cross-linked anion-exchange membrane, and method for preparing same11 Jun 2026US 2026/0159628 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Graft polyarylether copolymers26 Mar 2026US 2026/0085142 A1Solvay Specialty Polymers USA, LLC
Most cited
By later US patents
- Dialysis system153US 4,094,775 ACalifornia Institute of Technology · 1978
- Polyurethane polyene compositions88US 4,496,535 ATyndale Plains-Hunter, Ltd. · 1985
- Polyurethane diacrylate compositions useful for contact lenses and the like68US 4,408,023 ATyndale Plains-Hunter, Ltd. · 1983
- Polyurethane diacrylate compositions64US 4,359,558 ATyndale Plains-Hunter, Ltd. · 1982
- Antithrombogenic biomedical material64US 4,424,311 AToray Industries, Inc. · 1984