B01D 29/601
By clearness or turbidity measuring
Official title: {by clearness or turbidity measuring}
B01D29/601 (By clearness or turbidity measuring) appears on 19 US grants and 20 published applications in this corpus.
Search patents in B01D- Granted patents
- 19
- Published applications
- 20
- Assignees
- 19
- Inventors
- 40
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 4 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System including a reusable oil filter25 Nov 2025US 12,478,902 B2Rpm Industries, LLC
- Filtering and concentrating apparatus having stirring function20 May 2025US 12,303,843 B2Zhejiang Dong'ou Filtering Machinery Manufacturing Co., Ltd.
- Process monitoring and control of filtration by means of filtrate measurements7 May 2024US 11,975,276 B2Bayer Aktiengesellschaft
- Method for filtering a large volume of a medium with a pre-sterilisable, at least semi-automated one-way filtration device1 Aug 2023US 11,712,659 B2Sartorius Stedim Biotech GmbH
- Suction tube filter arrangement and fluid tank system for a fluid tank12 Jul 2022US 11,383,187 B2MEAS France
- Water recycling device with filtration tank7 May 2026US 2026/0124561 A1Mimbly AB
- System including a reuseable oil filter26 Feb 2026US 2026/0054202 A1Rpm Industries, LLC
- Filter assembly for an appliance12 Feb 2026US 2026/0043188 A1Haier US Appliance Solutions, Inc.
- Method and system for producing at least one oil product from waste oil5 Dec 2024US 2024/0400913 A1
- Filtering and concentrating apparatus having stirring function for small ternary precursor particles, and concentrating method7 Jul 2022US 2022/0212121 A1Zhejiang Dong'ou Filtering Machinery Manufacturing Co., Ltd.
Most cited
By later US patents
- Combination above grade automatic stormwater separation filtration system and method of separation and filtration44US 6,077,423 ASWAF, Inc. · 2000
- Filtering process and apparatus25US 4,048,067 APhillips Petroleum Company · 1977
- Combination above grade automatic method of stormwater separation and filtration24US 6,171,507 B2SWAF, Inc. · 2001
- Filters23US 7,195,122 B2Pall Corporation · 2007
- Filtrate discharge system for pressure filter13US 4,525,274 ADorr-Oliver Incorporated · 1985