B01D 24/4684
Using spray devices
Official title: {using spray devices}
B01D24/4684 (Using spray devices) appears on 50 US grants and 18 published applications in this corpus.
Search patents in B01D- Granted patents
- 50
- Published applications
- 18
- Assignees
- 26
- Inventors
- 97
- Latest grant
- 16 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 4 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 3 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Filtration device16 Nov 2021US 11,173,429 B2Nihon Genryo Co., Ltd.
- Apparatus and method for removing impurities from water or wastewater5 Nov 2019US 10,463,995 B2Roberts Marketing DE, Inc.
- Method and system for recovering oil and removing oil from a resulting oil-water mixture9 Sep 2014US 8,828,237 B2Veolia Water Solutions & Technologies Support
- Reactive filtration29 Jun 2010US 7,744,764 B2Idaho Research Foundation, Inc.
- Reactive filtration11 May 2010US 7,713,423 B2Idaho Research Foundation, Inc.
- Method and Apparatus for Cleaning Filter Media4 Dec 2025US 2025/0367578 A1Veolia Water Solutions & Technologies Support
- Apparatus and methods for cleaning pool and spa filters28 Jul 2022US 2022/0233975 A1
- Filtration device11 Mar 2021US 2021/0069617 A1Nihon Genryo Co., Ltd.
- Apparatus and Method for Removing Impurities from Water or Wastewater5 Apr 2018US 2018/0093231 A1Roberts Marketing DE, Inc.
- Method and System for Recovering Oil and Removing Oil From a Resulting Oil-Water Mixture30 Jan 2014US 2014/0027389 A1Veolia Water Solutions & Technologies Support
Most cited
By later US patents
- Method and apparatus for separating suspended solids from liquids47US 4,743,382 AState of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University · 1988
- Filtration unit45US 6,110,389 A2000
- Water filtration apparatus having upflow buoyant media filter and downflow nonbuoyant media filter37US 4,608,181 ANeptune Microfloc, Inc. · 1986
- Method for backwashing water processing systems32US 5,750,041 A1998
- Radial flow filter having air fluidizing backwash means30US 4,643,836 A1987