B01D 2313/18
Specific valves
B01D2313/18 (Specific valves) appears on 469 US grants and 575 published applications in this corpus.
Search patents in B01D- Granted patents
- 469
- Published applications
- 575
- Assignees
- 361
- Inventors
- 1,338
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 5 |
| 2003 | 6 | 10 |
| 2004 | 12 | 13 |
| 2005 | 4 | 9 |
| 2006 | 6 | 10 |
| 2007 | 6 | 15 |
| 2008 | 7 | 22 |
| 2009 | 7 | 17 |
| 2010 | 11 | 19 |
| 2011 | 10 | 20 |
| 2012 | 17 | 11 |
| 2013 | 11 | 23 |
| 2014 | 8 | 15 |
| 2015 | 15 | 15 |
| 2016 | 10 | 11 |
| 2017 | 8 | 36 |
| 2018 | 20 | 22 |
| 2019 | 18 | 29 |
| 2020 | 26 | 43 |
| 2021 | 29 | 47 |
| 2022 | 25 | 36 |
| 2023 | 36 | 51 |
| 2024 | 25 | 39 |
| 2025 | 30 | 27 |
| 2026 | 14 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Microfluidic purification device29 Sep 2026US 12,746,548 B2Oriental System Technology Inc.
- One-way pressure exchange device for reverse osmosis desalination plants15 Sep 2026US 12,734,483 B2
- Fuel cell membrane humidifier15 Sep 2026US 12,738,511 B2Kolon Industries, Inc.
- Concentration apparatus and concentration method1 Sep 2026US 12,722,120 B2Yokogawa Electric Corporation
- Reverse osmosis methods14 Jul 2026US 12,678,739 B1Ozono Polaris, S.A. de C.V.
- Apparatus and method for waste-water reduction in laboratory water purification system8 Oct 2026US 2026/0308022 A1Thermo Orion Inc.
- Systems and devices for filtering biological products and methods of using the same3 Sep 2026US 2026/0257178 A1
- Organic solvent regenerator, substrate processing system, and method of regenerating organic solvent27 Aug 2026US 2026/0250222 A1SCREEN Holdings Co., Ltd.
- Water treatment apparatus and control method of water treatment apparatus20 Aug 2026US 2026/0242258 A1Samsung Electronics Co., Ltd.
- Water purification system20 Aug 2026US 2026/0242267 A1ZRO Waste Water, Inc.
Most cited
By later US patents
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- Personal water filter bottle system161US 6,569,329 B1Innova Pure Water Inc. · 2003
- Reverse osmosis liquid purification apparatus137US 4,367,140 ASykes Ocean Water Ltd. · 1983
- Dialysis apparatus with regulated mixing of the dialysis solution110US 4,508,622 AFresenius AG · 1985
- Variable oxygen/nitrogen enriched intake air system for internal combustion engine applications110US 5,649,517 AThe University of Chicago · 1997