B01D 2323/18
Pore-control agents or pore formers
B01D2323/18 (Pore-control agents or pore formers) appears on 134 US grants and 198 published applications in this corpus.
Search patents in B01D- Granted patents
- 134
- Published applications
- 198
- Assignees
- 140
- Inventors
- 501
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 5 |
| 2004 | 3 | 5 |
| 2005 | 2 | 9 |
| 2006 | 3 | 6 |
| 2007 | 3 | 13 |
| 2008 | 4 | 9 |
| 2009 | 8 | 5 |
| 2010 | 4 | 6 |
| 2011 | 7 | 6 |
| 2012 | 6 | 2 |
| 2013 | 2 | 5 |
| 2014 | 2 | 11 |
| 2015 | 6 | 18 |
| 2016 | 8 | 9 |
| 2017 | 9 | 11 |
| 2018 | 7 | 8 |
| 2019 | 10 | 10 |
| 2020 | 5 | 10 |
| 2021 | 6 | 6 |
| 2022 | 7 | 11 |
| 2023 | 4 | 8 |
| 2024 | 6 | 8 |
| 2025 | 3 | 9 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing a gas separation membrane28 Jul 2026US 12,691,417 B2Kerionics, S.L.
- Porous separation membrane21 Oct 2025US 12,447,445 B2Toray Industries, Inc.
- Apparatus for supplementing function of endocrine glands30 Sep 2025US 12,427,480 B2IVIVA Medical, Inc.
- Membrane and polymer for the manufacture thereof28 Jan 2025US 12,209,155 B2Solvay Specialty Polymers USA, LLC
- Method for creating a porous film through aqueous phase separation12 Nov 2024US 12,139,587 B2NX Filtration B.V.
- Oxidation resistant membranes30 Jul 2026US 2026/0216669 A1BASF SE
- Semipermeable membrane and semipermeable membrane module30 Jul 2026US 2026/0216670 A1Toyobo Co., Ltd.
- Hollow fiber membrane, hollow fiber membrane unit, hollow fiber membrane module, and humidity control machine30 Apr 2026US 2026/0115669 A1Toray Industries, Inc.
- Methods for manufacturing an apparatus for biological fluid purification with biocompatible membranes15 Jan 2026US 2026/0014523 A1IVIVA Medical, Inc.
- Synthesis of membranes grafted with amine-modified metal oxide for water treatment15 Jan 2026US 2026/0014530 A1King Fahd University of Petroleum and Minerals
Most cited
By later US patents
- Preparation of a polymeric hydrogel containing micropores and macropores for use as a cell culture substrate134US 5,244,799 A1993
- Poly(ethylene chlorotrifluoroethylene) membranes80US 7,247,238 B2Siemens Water Technologies Corp. · 2007
- Porous polyvinylidene fluoride resin film and process for producing the same79US 6,299,773 B1Asahi Kasei Kogyo Kabushiki Kaisha · 2001
- Microporous materials77US 5,238,613 A1993
- Microporous membranes of ultrahigh molecular weight polyethylene75US 4,778,601 AMillipore Corporation · 1988