B01D 61/002
Forward osmosis or direct osmosis
Official title: {Forward osmosis or direct osmosis}
B01D61/002 (Forward osmosis or direct osmosis) appears on 397 US grants and 650 published applications in this corpus.
Search patents in B01D- Granted patents
- 397
- Published applications
- 650
- Assignees
- 301
- Inventors
- 1,151
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 3 |
| 2004 | 5 | 4 |
| 2005 | 1 | 6 |
| 2006 | 1 | 4 |
| 2007 | 2 | 5 |
| 2008 | 2 | 3 |
| 2009 | 4 | 7 |
| 2010 | 4 | 12 |
| 2011 | 10 | 17 |
| 2012 | 6 | 37 |
| 2013 | 9 | 41 |
| 2014 | 12 | 36 |
| 2015 | 12 | 44 |
| 2016 | 25 | 43 |
| 2017 | 19 | 45 |
| 2018 | 31 | 48 |
| 2019 | 38 | 34 |
| 2020 | 27 | 43 |
| 2021 | 34 | 38 |
| 2022 | 19 | 37 |
| 2023 | 27 | 41 |
| 2024 | 22 | 41 |
| 2025 | 38 | 28 |
| 2026 | 23 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods of dewatering of alcoholic solutions via forward osmosis and related systems6 Oct 2026US 12,752,239 B2Porifera, Inc.
- Feedstock solution flow concentration system29 Sep 2026US 12,746,511 B2Asahi Kasei Kabushiki Kaisha
- Separation of alcohol using a membrane15 Sep 2026US 12,734,482 B2Altr Fltr Inc.
- Method and system for reducing volume of raw material liquid15 Sep 2026US 12,734,485 B2Asahi Kasei Kabushiki Kaisha
- System for reverse osmosis and for pressure retarded osmosis8 Sep 2026US 12,728,391 B2Danfoss A/S
- Conductive forward osmosis membrane and preparation method thereof8 Oct 2026US 2026/0307018 A1Beijing Baoshengtong International Electrical Engineering Technology Co., Ltd.
- Conductive base membrane and preparation method thereof24 Sep 2026US 2026/0284606 A1Beijing Baoshengtong International Electrical Engineering Technology Co., Ltd.
- Draw solute, draw solution, and water treatment method17 Sep 2026US 2026/0273468 A1Nippon Shokubai Co., Ltd.
- Raw Material Liquid Flow Concentration System and Raw Material Liquid Flow Concentration Method17 Sep 2026US 2026/0273469 A1Asahi Kasei Kabushiki Kaisha
- Systems and methods of draw solution recovery with energy saving evaporation supporting forward osmosis membrane crystallization17 Sep 2026US 2026/0274715 A1Fluid Technology Solutions (Fts), Inc.
Most cited
By later US patents
- Liquid transport member for high flux rates between two port regions357US 6,811,842 B1The Procter & Gamble Company · 2004
- Membranes for absorbent packets341US 5,108,383 AAllied-Signal Inc. · 1992
- Devices that change size/shape via osmotic pressure90US 6,692,528 B2The Polymer Technology Group · 2004
- Osmotic desalinization process79US 6,391,205 B12002
- Water purification pack79US 6,814,724 B2Prismedical Corporation · 2004