G01N 2021/1742
Either absorption or reflection
Official title: {either absorption or reflection}
G01N2021/1742 (Either absorption or reflection) appears on 43 US grants and 20 published applications in this corpus.
Search patents in G01N- Granted patents
- 43
- Published applications
- 20
- Assignees
- 44
- Inventors
- 102
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 3 | 6 |
| 2020 | 3 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Colored reagent complex and method of detecting a rust removing agent in metal working fluids using the same20 Jan 2026US 12,529,648 B2Northern Technologies International Corporation
- Dryness detection method and dryness detection apparatus18 Mar 2025US 12,253,458 B2Disco Corporation
- Colorimetric detection of amine-based shale inhibitors2 Aug 2022US 11,401,805 B2Halliburton Energy Services.Inc.
- Spectroscopic measurement device and spectrometry system13 Jul 2021US 11,060,911 B2Hamamatsu Photonics K.K.
- Spectroscopic measurement device and spectrometry system23 Feb 2021US 10,928,249 B2Hamamatsu Photonics K.K.
- A spectrometer device and a method for a classification of a sample18 Jun 2026US 2026/0168854 A1Trinamix GmbH
- Transformer lifetime evaluation apparatus and method7 Mar 2024US 2024/0077415 A1Ls Electric Co., Ltd.
- Dryness detection method and dryness detection apparatus21 Sep 2023US 2023/0296498 A1Disco Corporation
- Colored reagent complex and method of detecting a rust removing agent in metal working fluids using the same24 Aug 2023US 2023/0266231 A1Northern Technologies International Corporation
- Method for Estimating a Spectral Reflectance Value to be Expected of a Layer System24 Mar 2022US 2022/0091035 A1GMG GmbH & Co. KG
Most cited
By later US patents
- Spectrophotometric method and apparatus for the non-invasive672US 4,655,225 AKurabo Industries Ltd. · 1987
- Optical generator and detector of stress pulses173US 4,710,030 ABw Brown University Research Foundation · 1987
- Optical analysis method and apparatus having programmable rapid random wavelength access64US 4,883,963 ABran & Luebbe GmbH · 1989
- Quantitative near-infrared measurement instrument for multiple measurements in both reflectance and transmission modes49US 4,734,584 ATrebor Industries, Inc. · 1988
- Method and apparatus for measuring spectral absorption in an opaque specimen and method and apparatus for measuring the microscopic absorption distribution43US 5,345,306 AResearch Development Corporation of Japan · 1994