B01D 24/4884
By pressure measuring
Official title: {by pressure measuring}
B01D24/4884 (By pressure measuring) appears on 33 US grants and 21 published applications in this corpus.
Search patents in B01D- Granted patents
- 33
- Published applications
- 21
- Assignees
- 29
- Inventors
- 52
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 2 | 4 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for water filtration6 May 2025US 12,290,766 B2Lyco Manufacturing, Inc.
- Filtering system11 Mar 2025US 12,246,273 B2
- Pipeline filter1 Oct 2024US 12,102,946 B1Aquastar Pool Products, Inc.
- Sand filter LED status light10 Oct 2023US 11,779,863 B2Evoqua Water Technologies LLC
- Sand filter LED status light3 Jan 2023US 11,541,333 B2Evoqua Water Technologies LLC
- Method and Apparatus for Water Filtration24 Jul 2025US 2025/0235803 A1Lyco Manufacturing, Inc.
- Apparatus for preventing impurities in a washing fluid from clogging an underdrain and methods for preventing clogging of the underdrain and/or monitoring the apparatus18 Jul 2024US 2024/0238699 A1Roberts Marketing DE, Inc.
- Regenerative Media Filter Cleaning Apparatus and Method18 May 2023US 2023/0149836 A1Neptune-Benson, LLC
- Method and Apparatus for Water Filtration30 Mar 2023US 2023/0095493 A1Lyco Manufacturing, Inc.
- Sand Filter LED Status Light23 Mar 2023US 2023/0090606 A1Evoqua Water Technologies LLC
Most cited
By later US patents
- Filter apparatus and method39US 4,496,464 A1985
- Water decontamination system with filter, electrostatic treatment and UV radiation chamber39US 5,217,607 ADiamond Water Systems, Inc. · 1993
- Single cell gas flotation separator with filter media31US 5,516,434 AUnicel, Inc. · 1996
- Methods and apparatus for monitoring a filter bed by differential pressure30US 5,980,755 ARG Delaware, Inc. · 1999
- Treatment facility with backwash control system23US 4,187,175 ARobert Filter Manufacturing Company · 1980