B01D 71/702
Polysilsesquioxanes or combination of silica with bridging organosilane groups
Official title: {Polysilsesquioxanes or combination of silica with bridging organosilane groups}
B01D71/702 (Polysilsesquioxanes or combination of silica with bridging organosilane groups) appears on 37 US grants and 46 published applications in this corpus.
Search patents in B01D- Granted patents
- 37
- Published applications
- 46
- Assignees
- 38
- Inventors
- 147
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 4 |
| 2015 | 1 | 4 |
| 2016 | 3 | 5 |
| 2017 | 1 | 2 |
| 2018 | 5 | 2 |
| 2019 | 5 | 4 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Organosilica membranes, methods of making same, and uses thereof11 Aug 2026US 12,702,957 B2The Research Foundation for The State University of New York
- Filtration membrane4 Nov 2025US 12,458,932 B2King Fahd University of Petroleum and Minerals
- Hybrid crosslinked polymer membrane13 May 2025US 12,297,355 B2Sogang University Research & Business Development Foundation
- Hybrid membrane for gas separation30 Jul 2024US 12,048,902 B2Saudi Arabian Oil Company
- Composite semipermeable membrane and method for manufacturing same18 Jun 2024US 12,012,493 B2Hiroshima University
- Cross-linked Polyphosphazene-Polysiloxane Polymer for Gas Separation23 Jul 2026US 2026/0209449 A1
- Nano silk fibroin fibrous membrane with directional water transport and preparation method thereof7 May 2026US 2026/0124584 A1Haian Institute of High-Tech Research, Nanjing University
- Pervaporation membrane22 Jan 2026US 2026/0021456 A1Nitto Denko Corporation
- Filtration membrane14 Nov 2024US 2024/0375063 A1King Fahd University of Petroleum and Minerals
- Hybrid Crosslinked Polymer Membrane And Process For Fabricating The Same3 Oct 2024US 2024/0327638 A1Sogang University Research & Business Development Foundation
Most cited
By later US patents
- Composite membrane of a hydrophilic asymmetric membrane coated with an organosiloxane block copolymer114US 5,296,144 AWorld Trade Corporation · 1994
- Gas exchange apparatus using improved silicone rubber hollow fiber18US 5,964,725 AFuji Systems Corporation · 1999
- Process for preparing poly-(imidesiloxanes)11US 5,009,934 AWacker Chemie AG · 1991
- Separation of fluids using polyimidesiloxane membrane9US 5,032,279 AOccidental Chemical Corporation · 1991
- Gas separation composite membrane and method of producing the same, and gas separating module, gas separation apparatus and gas separation method using the same6US 9,452,392 B2FUJIFILM Corporation · 2016