B01D 71/283
Polyvinylpyridine
Official title: {Polyvinylpyridine}
B01D71/283 (Polyvinylpyridine) appears on 29 US grants and 43 published applications in this corpus.
Search patents in B01D- Granted patents
- 29
- Published applications
- 43
- Assignees
- 39
- Inventors
- 101
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 0 | 1 |
| 2019 | 2 | 4 |
| 2020 | 2 | 6 |
| 2021 | 4 | 5 |
| 2022 | 2 | 5 |
| 2023 | 4 | 4 |
| 2024 | 1 | 3 |
| 2025 | 3 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compounds, compositions and polymer films19 May 2026US 12,630,502 B2FUJIFILM Corporation
- Articles including an isoporous membrane disposed on a porous substrate and methods of making the same6 Jan 2026US 12,515,174 B2Solventum Intellectual Properties Company
- Membranes and their uses6 Jan 2026US 12,515,213 B2FUJIFILM Corporation
- Block copolymer templated crazing for membrane separation16 Dec 2025US 12,496,555 B2The University of Southern Mississippi
- Microfiltration membrane21 Oct 2025US 12,447,442 B2EMD Millipore Corporation
- Articles Including an Isoporous Membrane Disposed on a Porous Substrate and Methods of Making the Same11 Jun 2026US 2026/0158450 A1Thermo Fisher Scientific Inc.
- Block Copolymer Templated Crazing for Membrane Separation5 Mar 2026US 2026/0061373 A1The University of Southern Mississippi
- Microfiltration membrane22 Jan 2026US 2026/0021450 A1EMD Millipore Corporation
- Membranes having a crosslinked block copolymer and processes for making same11 Dec 2025US 2025/0375740 A1Entegris, Inc.
- Method for preparing loose cross-sectional asymmetric isoporous membrane based on thermally induced phase separation process29 May 2025US 2025/0170530 A1Zhejiang University of Technology
Most cited
By later US patents
- Preparation of crosslinked matrices containing covalently immobilized chemical species and unbound releasable chemical species253US 5,563,056 ABSI Corporation · 1996
- Gas separation device92US 6,635,104 B2McMaster University · 2003
- Macroporous polymeric membranes for the separation of polymers and a method of their application64US 4,889,632 ACeskoslovenska akademie ved · 1989
- Macroporous polymeric membranes for the separation of polymers and a method of their application62US 4,923,610 ACeskoslovenska akademive ved and Akademia Nauk SSSR · 1990
- Macroporous polymeric membranes for the separation of polymers and a method of their application62US 4,952,349 AAkademia nauk SSSR · 1990