B01D 1/0047
In a closed circuit
Official title: {in a closed circuit (B01D3/007 takes precedence)}
B01D1/0047 (In a closed circuit) appears on 78 US grants and 95 published applications in this corpus.
Search patents in B01D- Granted patents
- 78
- Published applications
- 95
- Assignees
- 68
- Inventors
- 177
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 5 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 4 |
| 2010 | 2 | 3 |
| 2011 | 4 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 7 |
| 2014 | 4 | 7 |
| 2015 | 0 | 2 |
| 2016 | 1 | 7 |
| 2017 | 4 | 10 |
| 2018 | 2 | 11 |
| 2019 | 9 | 3 |
| 2020 | 9 | 12 |
| 2021 | 8 | 7 |
| 2022 | 10 | 2 |
| 2023 | 4 | 1 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Seawater desalination equipment29 Sep 2026US 12,746,486 B2Manzeon Co., Ltd.
- Efficient water purification system and method5 Nov 2024US 12,134,046 B1
- Cyclone assisted desalination system and method5 Dec 2023US 11,834,348 B2King Abdullah University of Science and Technology
- Systems and methods for separating components from fluid streams28 Nov 2023US 11,826,672 B1Circle Verde Water Corporation
- Cooling and desalination system4 Apr 2023US 11,618,692 B2King Fahd University of Petroleum and Minerals
- Caustic solution evaporation plant24 Sep 2026US 2026/0284549 A1Bertrams Chemieanlagen AG
- Thermal desalination system3 Sep 2026US 2026/0257145 A1Research Foundation of the City University of New York
- Carbon dioxide recovery system11 Jun 2026US 2026/0158409 A1Mitsubishi Heavy Industries, Ltd.
- Methods and systems for direct-contact evaporation and condensation, and desalination methods and systems employing the same16 Apr 2026US 2026/0103402 A1Global Water Farms Corporation
- Production of synthetic hydrocarbons20 Mar 2025US 2025/0093023 A1Arcadia eFuels US Inc.
Most cited
By later US patents
- Water treatment process for thermal heavy oil recovery76US 6,536,523 B1Alberta Energy Company Ltd. · 2003
- Method and an apparatus for the desalination of seawater43US 5,932,074 A1999
- Desalination method and desalination apparatus43US 6,833,056 B1Ebara Corporation · 2004
- Multiple effect distillation process with reduced fouling31US 6,551,466 B1Aqua Pure Ventures Inc. · 2003
- Method, apparatus and system for concentrating solutions using evaporation31US 8,820,723 B1Saltworks Technologies Inc. · 2014