C04B 2111/00793
As filters or diaphragms
Official title: {as filters or diaphragms}
C04B2111/00793 (As filters or diaphragms) appears on 1,318 US grants and 1,622 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,318
- Published applications
- 1,622
- Assignees
- 524
- Inventors
- 2,573
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 15 | 0 |
| 1991 | 14 | 0 |
| 1992 | 18 | 0 |
| 1993 | 19 | 0 |
| 1994 | 9 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 23 | 0 |
| 1998 | 14 | 0 |
| 1999 | 21 | 0 |
| 2000 | 11 | 0 |
| 2001 | 19 | 3 |
| 2002 | 17 | 20 |
| 2003 | 26 | 41 |
| 2004 | 23 | 39 |
| 2005 | 18 | 57 |
| 2006 | 26 | 92 |
| 2007 | 23 | 111 |
| 2008 | 32 | 119 |
| 2009 | 69 | 146 |
| 2010 | 65 | 118 |
| 2011 | 87 | 94 |
| 2012 | 76 | 89 |
| 2013 | 79 | 53 |
| 2014 | 73 | 85 |
| 2015 | 58 | 85 |
| 2016 | 62 | 49 |
| 2017 | 55 | 34 |
| 2018 | 38 | 56 |
| 2019 | 34 | 49 |
| 2020 | 42 | 45 |
| 2021 | 29 | 62 |
| 2022 | 45 | 48 |
| 2023 | 30 | 42 |
| 2024 | 37 | 35 |
| 2025 | 35 | 32 |
| 2026 | 24 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Honeycomb structure, electrically heating support, and exhaust gas purification device25 Aug 2026US 12,716,374 B2NGK Insulators, Ltd.
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Treatment of particulate filters28 Jul 2026US 12,692,807 B2Johnson Matthey Public Limited Company
- Cordierite-indialite-pseudobrookite structured ceramic bodies, batch composition mixtures, and methods of manufacturing ceramic bodies therefrom16 Jun 2026US 12,655,064 B2Corning Incorporated
- Honeycomb filter26 May 2026US 12,636,603 B2NGK Insulators, Ltd.
- Method for producing graphitised formed parts by means of 3d printing6 Aug 2026US 2026/0225313 A1Nippon Kornmeyer Carbon Group GmbH
- 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
- Ceramics and methods of their manufacture30 Jul 2026US 2026/0217613 A1ImerTech SAS
Most cited
By later US patents
- Liposome extrusion method511US 4,737,323 ALiposome Technology, Inc. · 1988
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Process for the preparation of nanostructured materials191US 7,056,455 B2Carnegie Mellon University · 2006
- Ceramic structural body188US 5,914,187 AIbiden Co., Ltd. · 1999