G01N 2021/8571
Using filtering of sample fluid
Official title: {using filtering of sample fluid}
G01N2021/8571 (Using filtering of sample fluid) appears on 19 US grants and 20 published applications in this corpus.
Search patents in G01N- Granted patents
- 19
- Published applications
- 20
- Assignees
- 22
- Inventors
- 58
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 5 |
| 2024 | 2 | 4 |
| 2025 | 2 | 0 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid self-modulation21 Jul 2026US 12,686,007 B21087 Systems, Inc.
- Method of and analyser for the optical analysis of a liquid containing a dissolved gas24 Mar 2026US 12,584,899 B2Foss Analytical A/S
- Systems and methods for analyzing liquids10 Mar 2026US 12,571,726 B2University of South Florida
- Probe, a system and a method for analysis of a liquid in a mixture of the liquid and solid substance18 Nov 2025US 12,474,265 B2Stichting IMEC Nederland
- Optical spectra reconstruction based on optical measurements of downhole fluids4 Mar 2025US 12,241,842 B2Halliburton Energy Services.Inc.
- Analyzer for automatically detecting and quantifying glutaraldehyde in biocide products19 Feb 2026US 2026/0049933 A1Saudi Arabian Oil Company
- Adaptive detection of abnormal channels for subsurface optical measurements30 May 2024US 2024/0175356 A1Halliburton Energy Services.Inc.
- Optical spectra reconstruction based on optical measurements of downhole fluids14 Mar 2024US 2024/0085341 A1Halliburton Energy Services.Inc.
- Graded Bioprocess Monitoring22 Feb 2024US 2024/0060031 A11087 Systems, Inc.
- Probe, a system and a method for analysis of a liquid in a mixture of the liquid and solid substance1 Feb 2024US 2024/0035964 A1Stichting IMEC Nederland
Most cited
By later US patents
- Situ multi-channel combustion gas analyzer58US 4,560,873 ALear Siegler, Inc. · 1985
- Optical measurement of the chemical constituents of an opaque slurry51US 7,088,446 B2Particle Measuring Systems, Inc. · 2006
- Method and apparatus for subsurface contaminant detection and measurement9US 4,782,234 ATufts University · 1988
- Method and apparatus for detecting trace contaminents8US 5,023,452 AHughes Aircraft Company · 1991
- Optical gas densitometer4US 4,651,004 AFuji Electric Co., Ltd. · 1987