B01D 2323/218
Additive materials
B01D2323/218 (Additive materials) appears on 256 US grants and 492 published applications in this corpus.
Search patents in B01D- Granted patents
- 256
- Published applications
- 492
- Assignees
- 247
- Inventors
- 1,272
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 9 |
| 2015 | 3 | 17 |
| 2016 | 12 | 31 |
| 2017 | 14 | 41 |
| 2018 | 23 | 29 |
| 2019 | 29 | 47 |
| 2020 | 29 | 42 |
| 2021 | 24 | 36 |
| 2022 | 21 | 25 |
| 2023 | 15 | 51 |
| 2024 | 27 | 49 |
| 2025 | 35 | 65 |
| 2026 | 18 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Membrane permeate recycle with pressurized anaerobic digesters15 Sep 2026US 12,734,475 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Oil-water separation systems and methods of separating aqueous emulsions15 Sep 2026US 12,734,486 B2Aculon, Inc.
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Method for producing a gas separation membrane28 Jul 2026US 12,691,417 B2Kerionics, S.L.
- Hollow fiber and a process for preparation thereof21 Jul 2026US 12,685,972 B2E. & J. Gallo Winery
- Ion exchange membrane8 Oct 2026US 2026/0307020 A1Khalifa University of Science and Technology
- Conductive hollow fiber membrane and preparation method thereof and membrane assembly24 Sep 2026US 2026/0284601 A1Cangzhou Institute of Tiangong University
- Conductive base membrane and preparation method thereof24 Sep 2026US 2026/0284606 A1Beijing Baoshengtong International Electrical Engineering Technology Co., Ltd.
- Hollow fiber and a process for preparation thereof10 Sep 2026US 2026/0264024 A1
- Purification process of ethyl formate27 Aug 2026US 2026/0249251 A1Taicang Hushi Reagent Co., Ltd.
Most cited
By later US patents
- Method of making microporous material23US 7,445,735 B2Daramic, LLC · 2008
- Multilayer polymeric membrane11US 10,363,546 B2Liso Plastics, L.L.C. · 2019
- Method of making a microporous material10US 7,682,536 B2Daramic, LLC · 2010
- Porous multi-component material for the capture and separation of species of interest9US 9,370,749 B2Battelle Memorial Institute · 2016
- Zwitterion-functionalized block copolymer membranes and associated block copolymer composition7US 9,440,198 B2General Electric Company · 2016