B01D 46/24491
Porosity
Official title: {Porosity}
B01D46/24491 (Porosity) appears on 392 US grants and 481 published applications in this corpus.
Search patents in B01D- Granted patents
- 392
- Published applications
- 481
- Assignees
- 63
- Inventors
- 598
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 4 |
| 2003 | 2 | 7 |
| 2004 | 7 | 10 |
| 2005 | 4 | 17 |
| 2006 | 5 | 22 |
| 2007 | 7 | 29 |
| 2008 | 10 | 21 |
| 2009 | 23 | 23 |
| 2010 | 12 | 23 |
| 2011 | 21 | 24 |
| 2012 | 17 | 23 |
| 2013 | 25 | 19 |
| 2014 | 25 | 27 |
| 2015 | 17 | 27 |
| 2016 | 21 | 11 |
| 2017 | 23 | 26 |
| 2018 | 18 | 19 |
| 2019 | 15 | 23 |
| 2020 | 20 | 21 |
| 2021 | 19 | 20 |
| 2022 | 18 | 30 |
| 2023 | 23 | 18 |
| 2024 | 17 | 13 |
| 2025 | 15 | 12 |
| 2026 | 13 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Porous structure such as for filters, and making the same21 Jul 2026US 12,685,951 B2Corning Incorporated
- Exhaust gas purification device7 Jul 2026US 12,673,320 B2Cataler Corporation
- Honeycomb filter26 May 2026US 12,636,603 B2NGK Insulators, Ltd.
- Honeycomb filter21 Apr 2026US 12,605,665 B2NGK Insulators, Ltd.
- High efficiency air filter body1 Oct 2026US 2026/0295491 A1Corning Incorporated
- Honeycomb structure and honeycomb filter1 Oct 2026US 2026/0295525 A1NGK Insulators, Ltd.
- Filter and method for manufacturing same10 Sep 2026US 2026/0263982 A1NGK Insulators, Ltd.
- Methods of depositing inorganic particles25 Jun 2026US 2026/0176994 A1Corning Incorporated
- Low bulk density, high geometric surface area honeycomb bodies4 Jun 2026US 2026/0152445 A1Corning Incorporated
Most cited
By later US patents
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Honeycomb filter and method of making it163US 4,417,908 ACorning Glass Works · 1983
- Honeycomb filter and method of making it102US 4,416,676 ACorning Glass Works · 1983
- Honeycomb filter and ceramic filter assembly88US 7,112,233 B2Ibiden Co., Ltd. · 2006
- Pre-form for exhaust aftertreatment control filter63US 6,582,490 B2Fleetguard, Inc. · 2003