B01D 61/026
Comprising multiple reverse osmosis steps
Official title: {comprising multiple reverse osmosis steps}
B01D61/026 (Comprising multiple reverse osmosis steps) appears on 247 US grants and 345 published applications in this corpus.
Search patents in B01D- Granted patents
- 247
- Published applications
- 345
- Assignees
- 197
- Inventors
- 688
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 6 | 6 |
| 2003 | 2 | 8 |
| 2004 | 1 | 10 |
| 2005 | 5 | 5 |
| 2006 | 6 | 6 |
| 2007 | 1 | 5 |
| 2008 | 5 | 12 |
| 2009 | 5 | 8 |
| 2010 | 6 | 5 |
| 2011 | 3 | 12 |
| 2012 | 5 | 16 |
| 2013 | 1 | 13 |
| 2014 | 7 | 8 |
| 2015 | 5 | 8 |
| 2016 | 2 | 12 |
| 2017 | 8 | 16 |
| 2018 | 9 | 20 |
| 2019 | 11 | 16 |
| 2020 | 5 | 12 |
| 2021 | 14 | 15 |
| 2022 | 13 | 29 |
| 2023 | 13 | 30 |
| 2024 | 18 | 28 |
| 2025 | 18 | 21 |
| 2026 | 18 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of dewatering of alcoholic solutions via forward osmosis and related systems6 Oct 2026US 12,752,239 B2Porifera, Inc.
- Intelligent reverse osmosis control22 Sep 2026US 12,741,887 B2Ozono Polaris, S.A. de C.V.
- Purification of oligosaccharides from a fermentation broth by using filtration15 Sep 2026US 12,735,443 B2Chr. Hansen A/S
- Membranes with controlled porosity for serial filtration8 Sep 2026US 12,728,389 B2Gradiant Corporation
- Osmotic methods and systems involving energy recovery1 Sep 2026US 12,722,989 B2Gradiant Corporation
- Filtration manifold with integrated bypass8 Oct 2026US 2026/0307010 A1Midea Group Co., Ltd.
- Utilization of an ultra-high pressure reverse osmosis membrane system to treat industrial wastewater or a reverse osmosis reject waste stream8 Oct 2026US 2026/0308017 A1Renovo Resources LLC
- Container and water treatment system20 Aug 2026US 2026/0241342 A1Yokogawa Electric Corporation
- Control device, control method, and control program6 Aug 2026US 2026/0225933 A1Yokogawa Electric Corporation
- Wastewater concentration device and concentration method23 Jul 2026US 2026/0209087 A1Kurita Water Industries Ltd.
Most cited
By later US patents
- Peritoneal dialysis system using reverse osmosis purification device260US 5,498,338 AAbbott Laboratories · 1996
- Purification of gases from water using reverse osmosis144US 5,670,053 AZenon Environmental Inc. · 1997
- Method and apparatus for high efficiency reverse osmosis operation122US 5,925,255 A1999
- Water purification process117US 4,808,287 A1989
- Method and apparatus utilizing staged reverse osmosis units for purifying and dispensing water105US 4,160,727 AForemost-McKesson, Inc. · 1979