G01N 21/3577
For analysing liquids
Official title: for analysing liquids, e.g. polluted water
G01N21/3577 (For analysing liquids) appears on 1,027 US grants and 1,180 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,027
- Published applications
- 1,180
- Assignees
- 758
- Inventors
- 2,776
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 14 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 10 | 1 |
| 2002 | 17 | 17 |
| 2003 | 12 | 37 |
| 2004 | 18 | 36 |
| 2005 | 14 | 26 |
| 2006 | 20 | 37 |
| 2007 | 20 | 25 |
| 2008 | 23 | 27 |
| 2009 | 12 | 36 |
| 2010 | 30 | 34 |
| 2011 | 28 | 35 |
| 2012 | 23 | 43 |
| 2013 | 24 | 46 |
| 2014 | 30 | 34 |
| 2015 | 33 | 44 |
| 2016 | 48 | 78 |
| 2017 | 62 | 54 |
| 2018 | 50 | 57 |
| 2019 | 45 | 72 |
| 2020 | 56 | 77 |
| 2021 | 59 | 66 |
| 2022 | 60 | 57 |
| 2023 | 49 | 67 |
| 2024 | 54 | 73 |
| 2025 | 50 | 62 |
| 2026 | 28 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing thin juice for the production of sugar, process for producing sugar and sugar production plant22 Sep 2026US 12,742,217 B2Pfeifer & Langen IP GmbH
- Integration of fluid analyzer module measurements for quality control of fluid sampling and processes for using same22 Sep 2026US 12,742,729 B2Schlumberger Technology Corporation
- Adsorption evaluation apparatus and adsorption evaluation method22 Sep 2026US 12,742,730 B2Hamamatsu Photonics K.K.
- Method and apparatus for measuring absorption coefficient of a medium1 Sep 2026US 12,723,971 B2Barriq Inc.
- Optical analysis device and combined analysis device1 Sep 2026US 12,723,978 B2HORIBA Advanced Techno, Co., Ltd.
- Method and system for made-tea quality assessment in manufacturing process24 Sep 2026US 2026/0287502 A1Tata Consultancy Services Limited
- Colorectal cancer detection17 Sep 2026US 2026/0279570 A1Dxcover Limited
- Systems and methods for determining fluid aging10 Sep 2026US 2026/0266793 A1Simple Labs, Inc.
- Spectroscopic measurement device and adjustment method therefor20 Aug 2026US 2026/0243662 A1Hitachi High-Tech Corporation
- Method to measure turbidity and total suspended solids and turbidity sensor system thereof13 Aug 2026US 2026/0235505 A1Haber Inc.
Most cited
By later US patents
- Method and apparatus for multi-spectral analysis in noninvasive nir spectroscopy674US 5,747,806 AInstrumentation Metrics, Inc. · 1998
- Device and method for in vitro determination of analyte concentrations within body fluids438US 6,989,891 B2OptiScan Biomedical Corporation · 2006
- Calibration of near infrared quantitative measurement device using optical measurement cross-products363US 6,477,392 B1Futrex, Inc. · 2002
- Method for correcting spectral data for data due to the spectral measurement process itself and estimating unknown property and/or composition data of a sample using such method236US 5,121,337 AExxon Research & Engineering Co. · 1992
- Method and apparatus for multi-spectral analysis in noninvasive NIR spectroscopy186US 5,945,676 AInstrumentation Metrics, Inc. · 1999