B01D 2273/12
Influencing the filter cake during filtration using filter aids
B01D2273/12 (Influencing the filter cake during filtration using filter aids) appears on 39 US grants and 43 published applications in this corpus.
Search patents in B01D- Granted patents
- 39
- Published applications
- 43
- Assignees
- 31
- Inventors
- 83
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 5 |
| 2012 | 2 | 4 |
| 2013 | 4 | 4 |
| 2014 | 4 | 5 |
| 2015 | 1 | 1 |
| 2016 | 5 | 2 |
| 2017 | 3 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the dry filtration of a gas flow carrying foreign objects, and filter device for cleaning raw gas carrying foreign objects27 Jan 2026US 12,533,616 B2Herding GmbH Filtertechnik
- High efficiency air filter device and operating method thereof5 Dec 2023US 11,833,465 B2Foshan Human Habitat Environmental Protection Engineering Co., Ltd.
- Method for operating a surface treatment plant7 Apr 2020US 10,610,876 B2Eisenmann SE
- Operation method for coating exhaust treatment system24 Dec 2019US 10,512,930 B2Taikisha Ltd.
- Removal of residual particulate matter from filter media9 Jan 2018US 9,862,008 B2Energy & Environmental Research Center Foundation
- Method for the dry filtration of a gas flow carrying foreign objects, and filter device for cleaning raw gas carrying foreign objects7 May 2026US 2026/0124568 A1Herding GmbH Filtertechnik
- Mixed collection and compression device for dust and thin metal27 Nov 2025US 2025/0360683 A1Dongguan Villo Technology Inc.
- Device for removing wet paint overspray8 Feb 2024US 2024/0042475 A1Dürr Systems AG
- Method for the dry filtration of a gas flow carrying foreign objects, and filter device for cleaning raw gas carrying foreign objects19 Oct 2023US 2023/0330581 A1Herding GmbH Filtertechnik
- Method for the dry filtration of a gas flow carrying foreign objects, and filter device for cleaning raw gas carrying foreign objects16 Mar 2023US 2023/0079987 A1
Most cited
By later US patents
- Method for removing pollutants from a combustor flue gas and system for same199US 5,505,766 AElectric Power Research, Inc. · 1996
- Method for hazardous waste removal and neutralization35US 5,022,897 APotters Industries, Inc. · 1991
- Gas stream clean-up filter and method for forming same20US 5,198,002 AThe United States of America as represented by the United States Department of Energy · 1993
- Apparatus and method for emissions control through continuous filtration system20US 6,451,091 B12002
- Equipment for treating waste gas containing tar mist18US 4,010,013 ATaisei Kensetsu Kabushiki Kaisha · 1977