B01D 33/466
Scrapers
Official title: {scrapers}
B01D33/466 (Scrapers) appears on 331 US grants and 162 published applications in this corpus.
Search patents in B01D- Granted patents
- 331
- Published applications
- 162
- Assignees
- 223
- Inventors
- 591
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 6 | 0 |
| 1995 | 15 | 0 |
| 1996 | 8 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 14 | 4 |
| 2002 | 4 | 6 |
| 2003 | 5 | 4 |
| 2004 | 7 | 8 |
| 2005 | 2 | 8 |
| 2006 | 10 | 4 |
| 2007 | 1 | 7 |
| 2008 | 4 | 6 |
| 2009 | 2 | 4 |
| 2010 | 8 | 10 |
| 2011 | 5 | 9 |
| 2012 | 4 | 6 |
| 2013 | 7 | 4 |
| 2014 | 3 | 6 |
| 2015 | 2 | 13 |
| 2016 | 6 | 5 |
| 2017 | 6 | 4 |
| 2018 | 4 | 5 |
| 2019 | 8 | 6 |
| 2020 | 7 | 6 |
| 2021 | 3 | 7 |
| 2022 | 2 | 8 |
| 2023 | 3 | 5 |
| 2024 | 9 | 7 |
| 2025 | 6 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary drum filtering machine for algae filtration10 Feb 2026US 12,544,693 B2Algaecore Technologies Ltd
- Microplastic filter for washing machines or other appliances30 Sep 2025US 12,427,453 B2Samsung Electronics Co., Ltd.
- Continuous frying device26 Aug 2025US 12,396,594 B2Marel Further Processing B. V.
- Tableware washing apparatus and filtering device thereof26 Aug 2025US 12,396,614 B2Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd.
- Water treatment method and water treatment apparatus29 Jul 2025US 12,371,357 B2Kubota Corporation
- Device for cleaning liquid media using vacuum belt filters1 Oct 2026US 2026/0295478 A1
- Filter screen, tubular filter and filter device30 Jul 2026US 2026/0216624 A1Maag Ettlinger GmbH
- Device and method for separating a liquid from a feedstock23 Jul 2026US 2026/0208075 A1Herbold Meckesheim GmbH
- Grinder machine with improved screen diverter system26 Feb 2026US 2026/0054269 A1Franklin Miller, Inc.
- Device for cleaning and/or suctioning pile fibers for pile cloth filtration11 Dec 2025US 2025/0375725 A1Mecana AG
Most cited
By later US patents
- Rotary drum filter with reciprocating nozzle means70US 5,470,472 ADorr-Oliver Incorporated · 1995
- Scraper blade assembly60US 5,865,997 AAshbrook Corporation · 1999
- Rotary drum type device for separating solid particles from a liquid59US 5,618,424 ANagaoka International Corporation · 1997
- Conical screen basket centrifuge53US 5,378,364 ABaker Hughes Incorporated · 1995
- Gumbo separator50US 5,921,399 ADerrick Corporation · 1999