B01D 21/245
Discharge mechanisms for the sediments
Official title: {Discharge mechanisms for the sediments}
B01D21/245 (Discharge mechanisms for the sediments) appears on 1,077 US grants and 749 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,077
- Published applications
- 749
- Assignees
- 642
- Inventors
- 1,775
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 9 | 0 |
| 1978 | 13 | 0 |
| 1979 | 11 | 0 |
| 1980 | 13 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 11 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 15 | 0 |
| 1988 | 5 | 0 |
| 1989 | 13 | 0 |
| 1990 | 11 | 0 |
| 1991 | 15 | 0 |
| 1992 | 13 | 0 |
| 1993 | 12 | 0 |
| 1994 | 19 | 0 |
| 1995 | 17 | 0 |
| 1996 | 28 | 0 |
| 1997 | 36 | 0 |
| 1998 | 48 | 0 |
| 1999 | 36 | 0 |
| 2000 | 39 | 0 |
| 2001 | 26 | 13 |
| 2002 | 28 | 24 |
| 2003 | 30 | 38 |
| 2004 | 32 | 39 |
| 2005 | 27 | 37 |
| 2006 | 22 | 31 |
| 2007 | 28 | 20 |
| 2008 | 15 | 20 |
| 2009 | 22 | 20 |
| 2010 | 14 | 11 |
| 2011 | 16 | 19 |
| 2012 | 13 | 21 |
| 2013 | 16 | 37 |
| 2014 | 20 | 28 |
| 2015 | 17 | 35 |
| 2016 | 21 | 28 |
| 2017 | 35 | 35 |
| 2018 | 40 | 45 |
| 2019 | 32 | 23 |
| 2020 | 38 | 53 |
| 2021 | 55 | 46 |
| 2022 | 37 | 29 |
| 2023 | 35 | 35 |
| 2024 | 21 | 23 |
| 2025 | 15 | 24 |
| 2026 | 16 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Rotary scraper and method for discharging foreign matter having high specific gravity in gypsum slurry13 Aug 2026US 2026/0233127 A1Tokuyama Corporation
- Mud handling auger system6 Aug 2026US 2026/0225005 A1ESD Waste2Water, Inc.
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Most cited
By later US patents
- Robust system for screening mail for biological agents1,080US 6,887,710 B2MesoSystems Technology, Inc. · 2005
- Enhanced yield platelet collection systems and methods216US 5,370,802 ABaxter International Inc. · 1994
- Centrifugation pheresis system202US 4,834,890 ABaxter International Inc. · 1989
- Time based interface detection systems for blood processing apparatus186US 5,316,667 ABaxter International Inc. · 1994
- Centrifugation system having an interface detection surface161US 5,322,620 ABaxter International Inc. · 1994