B04B 7/18
Formed or coated with sieving or filtering elements
Official title: formed or coated with sieving or filtering elements (filters in general B01D; sieves in general B07B)
B04B7/18 (Formed or coated with sieving or filtering elements) appears on 70 US grants and 44 published applications in this corpus.
Search patents in B04B- Granted patents
- 70
- Published applications
- 44
- Assignees
- 56
- Inventors
- 128
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 3 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 5 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 0 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 3 | 3 |
| 2022 | 1 | 3 |
| 2023 | 1 | 4 |
| 2024 | 4 | 2 |
| 2025 | 5 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device structure for multistage water-air separation of cleaning machine6 Jan 2026US 12,514,421 B2GuangDong Well Technology Co., Ltd
- Method of industrial centrifuge basket perforation8 Jul 2025US 12,350,688 B2The Western States Machine Company
- Method of use of cellular component concentrator and filter apparatus17 Jun 2025US 12,330,172 B2Arthrex, Inc.
- Method for fixing a metal sheet and filter device produced therewith10 Jun 2025US 12,325,033 B2
- Methods and systems for processing photopolymerizable compositions27 May 2025US 12,311,289 B2Solventum Intellectual Properties Company
- Method of industrial centrifuge basket perforation18 Sep 2025US 2025/0289007 A1The Western States Machine Company
- Centrifugal screen filter and related method of assembly18 Jul 2024US 2024/0238807 A1Aqseptence Group, Inc.
- Device structure for multistage water-air separation of cleaning machine25 Jan 2024US 2024/0023781 A1GuangDong Well Technology Co., Ltd
- Methods and systems for processing photopolymerizable compositions7 Dec 2023US 2023/0390673 A13M Innovative Properties Company
- Methods for purification of messenger rna9 Nov 2023US 2023/0357751 A1Translate Bio, Inc.
Most cited
By later US patents
- Conical screen basket centrifuge53US 5,378,364 ABaker Hughes Incorporated · 1995
- Conical screen for a vertical centrifugal separator39US 4,961,722 AGuyan Machinery Co. · 1990
- Apparatus for the recovery of food juices39US 5,031,522 AKrauss-Maffei Aktiengesellschaft · 1991
- Centrifuge with partial wear resistant basket33US 6,267,250 B1Baker Hughes Incorporated · 2001
- Centrifuge with partial wear resistant basket24US 6,109,452 ABaker Hughes Incorporated · 2000