B01D 2313/19
Specific flow restrictors
B01D2313/19 (Specific flow restrictors) appears on 66 US grants and 108 published applications in this corpus.
Search patents in B01D- Granted patents
- 66
- Published applications
- 108
- Assignees
- 72
- Inventors
- 251
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 3 | 5 |
| 2014 | 3 | 3 |
| 2015 | 0 | 4 |
| 2016 | 3 | 10 |
| 2017 | 6 | 5 |
| 2018 | 2 | 4 |
| 2019 | 5 | 7 |
| 2020 | 7 | 15 |
| 2021 | 4 | 4 |
| 2022 | 5 | 5 |
| 2023 | 9 | 7 |
| 2024 | 3 | 17 |
| 2025 | 6 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems, devices, and methods for electrodialysis-based home-scale desalination13 Aug 2026US 2026/0234033 A1Massachusetts Institute of Technology
- Reverse osmosis (ro) water filtration system for recreational vehicles (rvs) and method of water purification and dispensation16 Jul 2026US 2026/0199838 A1
- System and method for improved micro and ultra crossflow membrane filtration2 Jul 2026US 2026/0183718 A1PurposeEnergy, Inc.
- Water treatment apparatus4 Jun 2026US 2026/0152420 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Extracorporeal blood treatment apparatus and method135US 5,730,712 AAlthin Medical, Inc. · 1998
- Membrane filtration device having a hygienic suspension arrangement125US 9,776,138 B2Tetra Laval Holdings & Finance S. A. · 2017
- Hemodiafiltration system and method66US 6,776,912 B2Membrana GmbH · 2004
- Fluid separation assembly having an purge control valve33US 5,411,662 APraxair Technology, Inc. · 1995
- Blood processing unit with circumferential blood flow26US 8,795,220 B2Politecnico Di Milano · 2014