B01D 46/2496
Circular
Official title: {Circular}
B01D46/2496 (Circular) appears on 57 US grants and 73 published applications in this corpus.
Search patents in B01D- Granted patents
- 57
- Published applications
- 73
- Assignees
- 29
- Inventors
- 136
- Latest grant
- 7 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 5 |
| 2005 | 0 | 1 |
| 2006 | 3 | 3 |
| 2007 | 0 | 4 |
| 2008 | 3 | 11 |
| 2009 | 5 | 8 |
| 2010 | 6 | 5 |
| 2011 | 5 | 6 |
| 2012 | 4 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 5 |
| 2015 | 2 | 4 |
| 2016 | 1 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 1 |
| 2019 | 4 | 3 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 4 | 0 |
| 2023 | 1 | 3 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Activated carbon air filter7 Nov 2023US 11,806,654 B2Focus Universal Inc.
- Activated carbon air filter18 Oct 2022US 11,471,811 B2Focus Universal Inc.
- Dust collector for gaseous fluids and a method for manufacturing the dust collector6 Sep 2022US 11,433,343 B2Wamgroup S.P.A.
- Honeycomb structure, honeycomb structure type catalyst and production methods therefor19 Apr 2022US 11,305,270 B2N. E. Chemcat Corporation
- Honeycomb formed body and method for producing honeycomb structure1 Mar 2022US 11,261,134 B2NGK Insulators, Ltd.
- Pillar-shaped honeycomb structure filter and method for manufacturing same3 Oct 2024US 2024/0325957 A1NGK Insulators, Ltd.
- Monolithic Membrane Filters12 Oct 2023US 2023/0321607 A1Innospire Technologies GmbH
- Metal honeycomb substrate16 Mar 2023US 2023/0080614 A1Sentec E&E Co., Ltd.
- Activated carbon air filter2 Mar 2023US 2023/0067514 A1Focus Universal Inc.
- Activated carbon air filter17 Jun 2021US 2021/0178308 A1Focus Universal Inc.
Most cited
By later US patents
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Particulate trap for diesel engine114US 5,908,480 ASumitomo Electric Industries, Ltd. · 1999
- Honeycomb filter and ceramic filter assembly88US 7,112,233 B2Ibiden Co., Ltd. · 2006
- Honeycomb filter and ceramic filter assembly55US 7,427,309 B2Ibiden Co., Ltd. · 2008
- Diesel particulate filters35US 6,464,744 B2Corning Incorporated · 2002