B01D 2323/216
Surfactants
B01D2323/216 (Surfactants) appears on 23 US grants and 43 published applications in this corpus.
Search patents in B01D- Granted patents
- 23
- Published applications
- 43
- Assignees
- 39
- Inventors
- 158
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 4 | 5 |
| 2021 | 2 | 6 |
| 2022 | 3 | 3 |
| 2023 | 2 | 12 |
| 2024 | 3 | 6 |
| 2025 | 5 | 5 |
| 2026 | 3 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- 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.
- Polyamide-functionalized silicon carbide (SiC) nanoparticles-based ceramic membrane for separating an oil and water mixture12 May 2026US 12,624,143 B2King Fahd University of Petroleum and Minerals
- Ceramic membrane technology for molecule-range separation16 Dec 2025US 12,496,557 B2Agency for Science, Technology and Research
- Self-assembled surfactant structures12 Aug 2025US 12,384,699 B2Crosstek Holding Company LLC
- Methods of making lithium selective nanofiltration membranes and their applications2 Jul 2026US 2026/0183723 A1Greenvi Corp.
- Nanostructured high-performance thin film composite reverse osmosis membranes and methods of manufacture27 Nov 2025US 2025/0360465 A1Greenvi Corp.
- Membrane-based separation of micelle-associated pfas molecules13 Nov 2025US 2025/0345756 A1Gradiant Corporation
- Methods for making charged ultrafiltration membranes and uses thereof in dairy applications29 May 2025US 2025/0170529 A1fairlife, LLC
- Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite9 Jan 2025US 2025/0010248 A1Jccl, Inc.
Most cited
By later US patents
- Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite3US 10,981,122 B2Kyushu University, National University Corporation · 2021
- Microporous articles with a three-dimensional porous network of acid-sintered interconnected silica nanoparticles and methods of making the same2US 10,328,389 B23M Innovative Properties Company · 2019
- Free-standing liquid membranes for substance separation, filtration, extraction, and blockage2US 10,668,431 B1The Penn State Research Foundation · 2020
- Free-standing liquid membranes for substance separation, filtration, extraction, and blockage1US 11,014,048 B2The Penn State Research Foundation · 2021
- Antimicrobial filtration membranes1US 11,433,359 B1Arrowhead Center, Inc. · 2022