B01D 2323/286
Closing of pores
Official title: Closing of pores, e.g. for membrane sealing
B01D2323/286 (Closing of pores) appears on 26 US grants and 39 published applications in this corpus.
Search patents in B01D- Granted patents
- 26
- Published applications
- 39
- Assignees
- 29
- Inventors
- 107
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 3 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 1 | 4 |
| 2018 | 3 | 5 |
| 2019 | 4 | 4 |
| 2020 | 2 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same10 Mar 2026US 12,569,816 B2Vito NV
- Nanoparticles for use in membranes24 Sep 2024US 12,097,471 B2Evoqua Water Technologies LLC
- Robust membrane supporting structures21 May 2024US 11,986,774 B1Memzyme, LLC
- Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same7 May 2024US 11,975,296 B2Toray Advanced Materials Korea Inc.
- Selective interfacial mitigation of graphene defects20 Apr 2021US 10,981,120 B2Lockheed Martin Corporation
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Jul 2026US 2026/0183722 A1Vito NV
- Ceramic proton-conducting membranes22 Feb 2024US 2024/0058765 A1University of Washington
- Ceramic proton-conducting membranes24 Feb 2022US 2022/0054985 A1University of Washington
- Nanoparticles for use in membranes30 Dec 2021US 2021/0402355 A1Mar Cor Purification, Inc.
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Sep 2021US 2021/0268451 A1Vito NV
Most cited
By later US patents
- Gas impermeable glaze for sealing a porous ceramic surface32US 6,716,275 B1Sandia Corporation · 2004
- Ceramic proton-conducting membranes21US 10,124,296 B2University of Washington · 2018
- Process for producing polymer film filters9US 5,234,538 AOxyphen AG · 1993
- Membrane structure and method of making6US 7,669,719 B2General Electric Company · 2010
- Selective interfacial mitigation of graphene defects5US 10,981,120 B2Lockheed Martin Corporation · 2021