B03D 1/1487
Means for cleaning or maintenance
Official title: {Means for cleaning or maintenance}
B03D1/1487 (Means for cleaning or maintenance) appears on 64 US grants and 26 published applications in this corpus.
Search patents in B03D- Granted patents
- 64
- Published applications
- 26
- Assignees
- 44
- Inventors
- 94
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Separator apparatus and feed arrangement for increased capacity4 Nov 2025US 12,458,980 B2FLSmidth A/S
- Sparger status sensor system31 May 2022US 11,344,896 B2Eriez Manufacturing Co.
- Flotation separation device26 Jan 2021US 10,898,904 B2Eriez Manufacturing Co.
- Sparger device for sparging a fluid into a slurry tank, flotation apparatus and system having such sparger device, and method for setting control fluid pressure of a sparger device14 Apr 2020US 10,618,059 B2Outotec (Finland) Oy
- Flotation separation device and method19 Nov 2019US 10,478,830 B2Eriez Manufacturing Co.
- Removably attachable skimming mechanism10 Apr 2025US 2025/0114800 A1Dhi - Dalbo Holdings, Inc. & Subsidiaries
- Water treatment device based on micro-nano bubble technology19 Dec 2024US 2024/0417283 A1Chongqing Academy of Eco-environmental sciences
- Separator apparatus and feed arrangement for increased capacity17 Nov 2022US 2022/0362785 A1FLSmidth A/S
- Clawson-improved flotation valve7 Oct 2021US 2021/0308694 A1Freeport-Mcmoran Corporation
- Flotation Separation Device19 Mar 2020US 2020/0086329 A1Eriez Manufacturing Co.
Most cited
By later US patents
- Method of and means for hydrodynamic mixing67US 4,861,165 ABeloit Corporation · 1989
- Water clarifying apparatus57US 4,931,175 ALenox Institute for Research, Inc. · 1990
- Froth flotation apparatus and method39US 4,399,028 AThe Black Clawson Company · 1983
- Apparatus and process for the gas flotation purification of oil-contaminated water38US 4,800,025 APony Industries, Inc. · 1989
- Method of and arrangement for the de-inking of pulp suspensions37US 4,331,534 AE & M Lamort · 1982