B01D 33/17
With rotary filtering tables
Official title: with rotary filtering tables (tables divided into separately tiltable buckets, trays or like sections B01D33/327)
B01D33/17 (With rotary filtering tables) appears on 45 US grants and 20 published applications in this corpus.
Search patents in B01D- Granted patents
- 45
- Published applications
- 20
- Assignees
- 33
- Inventors
- 63
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid cleaning apparatus15 Jul 2025US 12,359,881 B2LG Electronics Inc.
- Separating solids from liquids in a drilling fluid9 May 2023US 11,643,890 B2Saudi Arabian Oil Company
- Separating solids from liquids in a drilling fluid10 May 2022US 11,326,405 B2Saudi Arabian Oil Company
- Rotary vacuum and screen system and methods for separating solids and liquids4 Jan 2022US 11,213,771 B2
- Debris filtration apparatus1 May 2018US 9,958,220 B2Doosan Heavy Industries Construction Co., Ltd
- Grid structure for filter device22 Jan 2026US 2026/0021429 A1Andritz Separation Inc.
- Filter disk, device for dewatering sludge, and use of a filter disk19 Sep 2024US 2024/0307799 A1Huber SE
- Separating solids from liquids in a drilling fluid21 Jul 2022US 2022/0228450 A1Saudi Arabian Oil Company
- Rotary Vacuum and Screen System and Methods for Separating Solids and Liquids7 Apr 2022US 2022/0105450 A1
- Separating solids from liquids in a drilling fluid25 Nov 2021US 2021/0363839 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method and apparatus for the separation of caustic liquor, lime sludge and sludge in a causticizing process21US 4,929,355 AAB Hedemora Verkstader · 1990
- Rotary disc filter element12US 4,708,797 AAnton Steinecker Maschinenfabrick GmbH · 1987
- Rotary disk filter element12US 4,710,294 ASchenk-Filterbau Gesellschaft mit beschrankter Haftung · 1987
- Method and apparatus for filtration of slurries11US 4,017,399 APullman Incorporated · 1977
- Modular device for the ease of use and installation of filtration textiles11US 5,360,541 AAlbany International Corp. · 1994