B04B 7/16
Sieves or filters
Official title: Sieves or filters (filters in general B01D; sieves in general B07B)
B04B7/16 (Sieves or filters) appears on 47 US grants and 37 published applications in this corpus.
Search patents in B04B- Granted patents
- 47
- Published applications
- 37
- Assignees
- 42
- Inventors
- 92
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 5 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 3 | 1 |
| 2022 | 0 | 5 |
| 2023 | 0 | 0 |
| 2024 | 2 | 2 |
| 2025 | 4 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bi-directional filter19 May 2026US 12,629,620 B2Combipro AS
- Continuous centrifugal dewatering device12 May 2026US 12,623,234 B2LG Chem.Ltd.
- Centrifuge processing device and method16 Dec 2025US 12,496,592 B2
- Method for fixing a metal sheet and filter device produced therewith10 Jun 2025US 12,325,033 B2
- Grinding water treatment device for eyeglasses lens processing20 May 2025US 12,304,836 B2Nidek Co., Ltd.
- Apparatus and method for manufacturing base layer slurry11 Sep 2025US 2025/0281936 A1Hyundai Motor Company
- Centrifuge Processing Device and Method22 Aug 2024US 2024/0278261 A1
- Bi-directional filter29 Feb 2024US 2024/0066447 A1Combipro AS
- Continuous centrifugal dewatering device8 Dec 2022US 2022/0388014 A1LG Chem.Ltd.
- Chamber for centrifugal separation and method of centrifugal separation using the same8 Sep 2022US 2022/0280953 A1Cytodx Inc.
Most cited
By later US patents
- Filter-medium support plate for centrifugal filter65US 4,446,021 AKrauss-Maffei Aktiengesellschaft · 1984
- Centrifuge sieve and method of producing the same37US 4,569,761 ASulzer-Escher Wyss GmbH · 1986
- Decanting centrifuge with plural screen support sections23US 9,050,607 B2Thomas Broadbent & Sons Limited · 2015
- Centrifuge sieve22US 4,430,221 AEscher Wyss Limited · 1984
- Method of making a centrifuge screen14US 4,259,136 AEscher Wyss Limited · 1981