B01D 29/333
With corrugated, folded filtering elements
Official title: {with corrugated, folded filtering elements}
B01D29/333 (With corrugated, folded filtering elements) appears on 55 US grants and 60 published applications in this corpus.
Search patents in B01D- Granted patents
- 55
- Published applications
- 60
- Assignees
- 42
- Inventors
- 148
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 3 |
| 2017 | 2 | 4 |
| 2018 | 1 | 5 |
| 2019 | 5 | 3 |
| 2020 | 5 | 7 |
| 2021 | 4 | 9 |
| 2022 | 5 | 7 |
| 2023 | 2 | 4 |
| 2024 | 6 | 5 |
| 2025 | 3 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Retrofitting and use of rectangular filters, assembly and method for filtration25 Aug 2026US 12,714,957 B2Filtration Technology Corporation
- Filter arrangements for liquids and methods of use28 Jul 2026US 12,691,395 B2Donaldson Company, Inc.
- Water filter14 Oct 2025US 12,440,786 B2Karofi R&D Company Limited
- Enhanced fuel water separation using structural embossing13 May 2025US 12,296,287 B2Parker-Hannifin Corporation
- Filter element and associated filter media providing fuel water separation using surface embossing1 Apr 2025US 12,263,419 B2Parker-Hannifin Corporation
- Enhanced fuel water separation using structural embossing5 Feb 2026US 2026/0034481 A1Parker-Hannifin Corporation
- Filter arrangements for liquids and methods of use17 Oct 2024US 2024/0342633 A1Donaldson Company, Inc.
- Filter arrangements for liquids and methods of use17 Oct 2024US 2024/0342637 A1Donaldson Company, Inc.
- Suction strainer10 Oct 2024US 2024/0335774 A1Yamashin-Filter Corp.
- Filter arrangements for liquids and methods of use28 Mar 2024US 2024/0100453 A1Donaldson Company, Inc.
Most cited
By later US patents
- Filter element and manufacture method thereof141US 5,049,326 ANippondenso Co., Ltd. · 1991
- Filter element and manufacture method thereof95US 5,002,666 ANippondenso Co., Ltd. · 1991
- Reusable fluid filter78US 5,258,118 AFleetguard, Inc. · 1993
- High surface area filter cartridge70US 4,842,739 AMinnesota Mining and Manufacturing Company · 1989
- Porous filter43US 7,125,490 B2Porex Corporation · 2006