C04B 2111/00801
Membranes
Official title: {Membranes; Diaphragms}
C04B2111/00801 (Membranes) appears on 185 US grants and 185 published applications in this corpus.
Search patents in C04B- Granted patents
- 185
- Published applications
- 185
- Assignees
- 157
- Inventors
- 593
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 2 |
| 2003 | 6 | 11 |
| 2004 | 3 | 9 |
| 2005 | 2 | 1 |
| 2006 | 1 | 8 |
| 2007 | 8 | 14 |
| 2008 | 1 | 12 |
| 2009 | 4 | 8 |
| 2010 | 8 | 8 |
| 2011 | 6 | 10 |
| 2012 | 4 | 4 |
| 2013 | 4 | 3 |
| 2014 | 4 | 10 |
| 2015 | 3 | 4 |
| 2016 | 7 | 7 |
| 2017 | 5 | 4 |
| 2018 | 4 | 10 |
| 2019 | 4 | 11 |
| 2020 | 9 | 6 |
| 2021 | 5 | 4 |
| 2022 | 6 | 8 |
| 2023 | 2 | 7 |
| 2024 | 6 | 9 |
| 2025 | 7 | 7 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for preparing silicon carbide membrane supports using activated coke fly ash10 Feb 2026US 12,545,626 B2Jiangsu Jiulang High-Tech Co., Ltd.
- Method for manufacturing filter plates wastewater filter assemblies12 Aug 2025US 12,383,849 B2Ovivo Inc.
- Method of manufacturing a single-piece column structure for the separation of a fluid medium12 Aug 2025US 12,383,868 B2Technologies Avancees Et Membranes Industrielles
- Inorganic membrane filtration articles and methods thereof12 Aug 2025US 12,384,729 B2Corning Incorporated
- Honeycomb structure, exhaust gas purification catalyst, and exhaust gas purification system25 Mar 2025US 12,257,574 B2NGK Insulators, Ltd.
- Lithium-selective transmission membrane and method for manufacturing lithium-selective transmission membrane6 Aug 2026US 2026/0226643 A1Japan Fine Ceramics Co., LTD.
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216665 A1Sumitomo Chemical Company, Limited
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216666 A1Sumitomo Chemical Company, Limited
- Additive manufacturing of solid-state zirconate membrane11 Jun 2026US 2026/0158437 A1Valero Services, Inc.
- Process for preparing a green multilayer sol-gel ceramic membrane2 Apr 2026US 2026/0092013 A1Petroleo Brasileiro S.A. - Petrobras
Most cited
By later US patents
- Process for the preparation of nanostructured materials191US 7,056,455 B2Carnegie Mellon University · 2006
- Process to form mesostructured films157US 5,858,457 ASandia Corporation · 1999
- High strength polycrystalline ceramic spheres96US 7,669,658 B2William Marsh Rice University · 2010
- Filter including a porous discriminating layer on a fused single crystal acicular ceramic support, and method for making the same76US 5,198,007 AThe Dow Chemical Company · 1993
- Method of coating a substrate with a metal oxide film from an aqueous solution comprising a metal cation and a polymerizable organic solvent62US 5,494,700 AThe Curators of the University of Missouri · 1996