B01D 2323/50
Control of the membrane preparation process
B01D2323/50 (Control of the membrane preparation process) appears on 46 US grants and 66 published applications in this corpus.
Search patents in B01D- Granted patents
- 46
- Published applications
- 66
- Assignees
- 51
- Inventors
- 155
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 5 |
| 2019 | 2 | 5 |
| 2020 | 2 | 7 |
| 2021 | 5 | 8 |
| 2022 | 4 | 7 |
| 2023 | 4 | 8 |
| 2024 | 7 | 4 |
| 2025 | 6 | 1 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow fiber and a process for preparation thereof21 Jul 2026US 12,685,972 B2E. & J. Gallo Winery
- Assembly comprising a center-fluid distributor and a multi-fiber spinneret17 Mar 2026US 12,577,705 B2Gambro Lundia AB
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same10 Mar 2026US 12,569,816 B2Vito NV
- Porous membrane including perfluoroalkoxy alkane (PFA)-based melt-extruded film and having pores controlled by biaxial stretching, and manufacturing method therefor13 Jan 2026US 12,521,694 B2Pukyong National University Industry-University Cooperation Foundation
- Composite membrane and methods of fabrication thereof15 Jul 2025US 12,357,951 B2National University of Singapore
- Hollow fiber and a process for preparation thereof10 Sep 2026US 2026/0264024 A1
- Polymer composite thin film, gas separation body provided with polymer composite thin film, gas separation device provided with polymer composite thin film, and manufacturing method for polymer composite thin film30 Jul 2026US 2026/0216663 A1NanoMembrane Technologies, Inc.
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Jul 2026US 2026/0183722 A1Vito NV
- Adaptive 3d-printed reverse osmosis membrane manufacturing system12 Mar 2026US 2026/0070019 A1International Business Machines Corporation
- Selection method and system for target palladium membrane, execution method and system for hydrogen-related reaction, and determination method and system for permeation rate22 Jan 2026US 2026/0021453 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Process to form mesostructured films157US 5,858,457 ASandia Corporation · 1999
- Fluidic MEMS device20US 7,309,467 B2Hewlett-Packard Development Company, L. P. · 2007
- Porous film, method for manufacturing the same, gas permeability control film, and water vapor permeability control film11US 5,458,951 ASeiji Kagawa · 1995
- Method of making a porous film7US 5,593,632 A1997
- Method and apparatus for controlling fiber cross-alignment in a nanofiber membrane4US 11,208,735 B2University of Central Oklahoma · 2021