B01D 33/503
The backwash arms, shoes acting on the cake side
Official title: {the backwash arms, shoes acting on the cake side}
B01D33/503 (The backwash arms, shoes acting on the cake side) appears on 67 US grants and 49 published applications in this corpus.
Search patents in B01D- Granted patents
- 67
- Published applications
- 49
- Assignees
- 46
- Inventors
- 111
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 3 |
| 2014 | 0 | 4 |
| 2015 | 1 | 1 |
| 2016 | 1 | 4 |
| 2017 | 0 | 3 |
| 2018 | 2 | 4 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 1 | 5 |
| 2022 | 4 | 1 |
| 2023 | 2 | 5 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Disc filter having a suction device, and method for filtering fluids using a disc filter3 Mar 2026US 12,564,803 B2Mecana AG
- Automatic self-cleaning backwash strainer21 Oct 2025US 12,447,424 B2The Hellen Strainer Company
- Fish pond filtration device1 Jul 2025US 12,343,663 B2
- Systems and processes employing wet/dry suction filter17 Sep 2024US 12,090,428 B2Greatpyr Resources LLC
- Method for operating filtration device16 Jul 2024US 12,036,488 B2Fuji Filter Manufacturing Co., Ltd.
- Rotary Disc Filter Having a High Pressure Media Cleaning System21 May 2026US 2026/0138065 A1Veolia Water Solutions & Technologies Support
- Device for cleaning and/or suctioning pile fibers for pile cloth filtration11 Dec 2025US 2025/0375725 A1Mecana AG
- Separable two-stage vertical suction cleaning apparatus and fiber disk filter including the same5 Jun 2025US 2025/0177890 A1Yucheon Enviro Co., Ltd.
- Installation for treating wastewater from a toilet and sanitary unit comprising such an installation20 Jun 2024US 2024/0199442 A1Mizufalls SA
- Automatic self-cleaning backwash strainer11 Jan 2024US 2024/0009600 A1The Hellen Strainer Company
Most cited
By later US patents
- Apparatus for mechanical purification of waste water54US 4,639,315 AMecapec S.A. · 1987
- Installation for the mechanical-biological purification of waste water50US 4,090,965 AMecafina S.A. · 1978
- Self-cleaning filter49US 5,268,095 AFiltration Ltd. · 1993
- Filter cloth, filtering process, and filtering device for liquid filtration42US 6,103,132 A2000
- Pipeline sieve with a suction removal device38US 4,867,879 ATaprogge Gesellschaft mbH · 1989