B01D 61/4271
Comprising multiple electro-osmosis steps
Official title: {comprising multiple electro-osmosis steps}
B01D61/4271 (Comprising multiple electro-osmosis steps) appears on 8 US grants and 12 published applications in this corpus.
Search patents in B01D- Granted patents
- 8
- Published applications
- 12
- Assignees
- 8
- Inventors
- 25
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Ratchet-based ion pumping membrane systems20 Jan 2026US 12,528,052 B2The Regents of the University of California
- Filtration device, and filtration system7 May 2024US 11,975,277 B2Mitsubishi Kakoki Kaisha, Ltd.
- Electroosmotic pump unit and assembly29 May 2018US 9,982,663 B2The Board of Regents of the University of Oklahoma
- Self contained electroosmotic pump and method of making thereof1 Dec 2015US 9,199,201 B2General Electric Company
- Desalination and purification system7 Apr 2015US 8,999,132 B2Massachusetts Institute of Technology
- Filtration device, and filtration system21 Sep 2023US 2023/0294023 A1Mitsubishi Kakoki Kaisha, Ltd.
- Ratchet-based ion pumping membrane systems24 Jun 2021US 2021/0187442 A1The Regents of the University of California
- Smart active membrane13 May 2021US 2021/0138405 A1Osmotex AG
- Osmosis battery & high magnetic field generator & superconducting ionic current loop6 Dec 2018US 2018/0345219 A1
- Electroosmotic pump unit and assembly16 Apr 2015US 2015/0101930 A1The Board of Regents of the University of Oklahoma
Most cited
By later US patents
- Method and apparatus for desalination and purification43US 8,801,910 B2Massachusetts Institute of Technology · 2014
- Desalination and purification system20US 8,999,132 B2Massachusetts Institute of Technology · 2015
- Microfluidic separation device5US 8,999,263 B2OndaVia, Inc. · 2015
- Self contained electroosmotic pump and method of making thereof1US 9,199,201 B2General Electric Company · 2015