B01D 2323/38
Graft polymerization
B01D2323/38 (Graft polymerization) appears on 276 US grants and 293 published applications in this corpus.
Search patents in B01D- Granted patents
- 276
- Published applications
- 293
- Assignees
- 222
- Inventors
- 863
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 8 | 8 |
| 2003 | 1 | 6 |
| 2004 | 6 | 13 |
| 2005 | 4 | 8 |
| 2006 | 7 | 14 |
| 2007 | 2 | 9 |
| 2008 | 4 | 10 |
| 2009 | 3 | 16 |
| 2010 | 5 | 15 |
| 2011 | 7 | 8 |
| 2012 | 10 | 15 |
| 2013 | 14 | 16 |
| 2014 | 8 | 13 |
| 2015 | 10 | 19 |
| 2016 | 11 | 7 |
| 2017 | 10 | 8 |
| 2018 | 10 | 8 |
| 2019 | 5 | 13 |
| 2020 | 10 | 11 |
| 2021 | 9 | 20 |
| 2022 | 6 | 15 |
| 2023 | 7 | 7 |
| 2024 | 12 | 13 |
| 2025 | 7 | 13 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Organosilica membranes, methods of making same, and uses thereof11 Aug 2026US 12,702,957 B2The Research Foundation for The State University of New York
- Metal-organic framework material separation membrane, preparation method therefor, and use thereof21 Apr 2026US 12,605,678 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Polyamide composite reverse osmosis membrane and preparation method thereof21 Apr 2026US 12,605,679 B2Hunan Keensen Technology Co., Ltd.
- Acid resistant filter media7 Apr 2026US 12,595,396 B2Entegris, Inc.
- Super-wet surface and preparation method therefor and application thereof10 Mar 2026US 12,569,814 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Hollow fiber membrane, method for manufacturing hollow fiber membrane, and hollow fiber membrane module6 Aug 2026US 2026/0225043 A1Toray Industries, Inc.
- Methods for making charged ultrafiltration membranes and uses thereof in dairy applications30 Jul 2026US 2026/0216653 A1fairlife, LLC
- Water distillation membranes and methods for using the same30 Jul 2026US 2026/0216668 A1Cellulotech Inc
- Process of manufacturing a device and device for the treatment of fluids23 Jul 2026US 2026/0208125 A1Medica Corporation
- Biosensor, outer membrane of biosensor, methods of preparation and use thereof2 Jul 2026US 2026/0182867 A1Shanghai Microport Lifesciences Co., Ltd.
Most cited
By later US patents
- Membranes with bound oligonucleotides and peptides117US 4,923,901 AMillipore Corporation · 1990
- Filter medium having a limited surface negative charge for treating a blood material109US 5,407,581 AAsahi Medical Co., Ltd. · 1995
- Modification of polyvinylidene fluoride membrane and method of filtering109US 5,531,900 AUniversity of Arizona · 1996
- Porous membrane formed from interpenetrating polymer network having hydrophilic surface105US 5,079,272 AMillipore Corporation · 1992
- Solid gel membrane separator in rechargeable electrochemical cells105US 6,358,651 B1Reveo, Inc. · 2002