B03B 5/44
Application of particular media therefor
B03B5/44 (Application of particular media therefor) appears on 121 US grants and 67 published applications in this corpus.
Search patents in B03B- Granted patents
- 121
- Published applications
- 67
- Assignees
- 88
- Inventors
- 214
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 3 |
| 2006 | 2 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 2 | 4 |
| 2011 | 1 | 3 |
| 2012 | 3 | 3 |
| 2013 | 3 | 3 |
| 2014 | 0 | 1 |
| 2015 | 4 | 5 |
| 2016 | 3 | 3 |
| 2017 | 4 | 3 |
| 2018 | 1 | 2 |
| 2019 | 3 | 7 |
| 2020 | 4 | 1 |
| 2021 | 5 | 1 |
| 2022 | 1 | 4 |
| 2023 | 1 | 1 |
| 2024 | 3 | 4 |
| 2025 | 4 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and apparatus for recovering rare earth elements from coal refuse25 Nov 2025US 12,480,182 B2
- System and method for four dimensionally separating materials5 Aug 2025US 12,377,421 B2
- Process and apparatus for separating various elements such as cesium from refuse1 Jul 2025US 12,343,735 B2
- Separation of minerals by specific gravity15 Apr 2025US 12,275,020 B2Good Earth IP Holdings, LLC
- Process and apparatus for separating anthracite or bituminous from refuse18 Jun 2024US 12,011,725 B1
- Separation of minerals by specific gravity9 Jul 2026US 2026/0192309 A1Good Earth IP Holdings, LLC
- Cascading density separators for facilitating density-based classification of particulate material12 Mar 2026US 2026/0070066 A1
- System and method for four dimensionally separating materials27 Nov 2025US 2025/0360514 A1
- Process and apparatus for recovering rare earth elements from coal refuse28 Aug 2025US 2025/0270675 A1
- Method of recovering valuable materials10 Apr 2025US 2025/0115487 A1Dowa Eco-System Co., Ltd.
Most cited
By later US patents
- Process for reducing sulfur emissions with calcium-containing sorbents75US 5,368,617 AGenesis Research Corporation · 1994
- Plastics separation and recycling methods73US 4,830,188 ARutgers, The State University · 1989
- Pyrite removal from coal50US 4,324,560 AConoco Inc. · 1982
- Process for the separation of carpet materials33US 5,598,980 AZimmer, Inc. · 1997
- Coal cleaning process31US 5,794,791 AGenesis Research Corporation · 1998