B01D 2323/21827
Salts
B01D2323/21827 (Salts) appears on 33 US grants and 58 published applications in this corpus.
Search patents in B01D- Granted patents
- 33
- Published applications
- 58
- Assignees
- 41
- Inventors
- 178
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2015 | 0 | 1 |
| 2016 | 0 | 4 |
| 2017 | 1 | 5 |
| 2018 | 4 | 5 |
| 2019 | 2 | 8 |
| 2020 | 5 | 11 |
| 2021 | 4 | 5 |
| 2022 | 5 | 3 |
| 2023 | 3 | 4 |
| 2024 | 4 | 5 |
| 2025 | 3 | 4 |
| 2026 | 2 | 3 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crosslinked facilitated transport membrane for hydrogen purification from coal-derived syngas31 Mar 2026US 12,589,363 B2Ohio State Innovation Foundation
- Membranes and their uses6 Jan 2026US 12,515,213 B2FUJIFILM Corporation
- Filtration apparatus containing graphene oxide membrane26 Aug 2025US 12,397,268 B2Via Separations, Inc.
- Durable graphene oxide membranes15 Jul 2025US 12,357,950 B2Via Separations, Inc.
- Anti-fouling and semi-permeable membrane27 May 2025US 12,311,321 B2Aquaporin A/S
- Hollow fiber membrane and hollow fiber membrane module6 Aug 2026US 2026/0225044 A1Toray Industries, Inc.
- Filtration apparatus containing graphene oxide membrane25 Jun 2026US 2026/0175179 A1Via Separations, Inc.
- Durable graphene oxide membranes7 May 2026US 2026/0124586 A1Via Separations, Inc.
- Graphene oxide membranes comprising sulfonated support27 Nov 2025US 2025/0360466 A1
- Highly Tuneable Graphene Oxide Membranes for Point-of-use to Portable Water Filtration20 Nov 2025US 2025/0352956 A1The University of Manchester
Most cited
By later US patents
- Durable graphene oxide membranes5US 11,097,227 B2Via Separations, Inc. · 2021
- Filtration apparatus containing graphene oxide membrane5US 11,123,694 B2Via Separations, Inc. · 2021
- Durable graphene oxide membranes3US 11,498,034 B2Via Separations, Inc. · 2022
- Filtration medium sequence for biomaterial purification2US 10,722,848 B23M Innovative Properties Company · 2020
- Complex nanofiltration membrane and the preparation thereof1US 10,040,032 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation · 2018