G01N 2021/3509
Correlation method
Official title: {Correlation method, e.g. one beam alternating in correlator/sample field}
G01N2021/3509 (Correlation method) appears on 17 US grants and 20 published applications in this corpus.
Search patents in G01N- Granted patents
- 17
- Published applications
- 20
- Assignees
- 17
- Inventors
- 49
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 3 | 3 |
| 2021 | 1 | 3 |
| 2022 | 2 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electromagnetic wave measuring apparatus, method, and recording medium12 May 2026US 12,625,071 B2Advantest Corporation
- Gas sensor5 May 2026US 12,622,085 B2Asahi Kasei Microdevices Corporation
- Use of gradient-index lenses for cavity enhanced absorption spectroscopy9 Jan 2024US 11,867,623 B2ABB Schweiz AG
- Integrated filter remote gas correlation sensor23 May 2023US 11,658,462 B2National Research Council of Canada
- Method of infrared spectrometric measurement of tunnel gas31 Jan 2023US 11,567,000 B2Sinotech Engineering Consultants, Inc.
- Gas sensor20 Aug 2026US 2026/0247739 A1Asahi Kasei Microdevices Corporation
- Spectroscopic analysis device, spectroscopic analysis method, spectroscopic analysis program, learning device, learning method, and learning program30 Jul 2026US 2026/0219176 A1Horiba, Ltd.
- Free space optical spectrometer systems and methods for their use26 Mar 2026US 2026/0085998 A1JP3 Measurement, LLC
- Gas flow rate estimation device, gas flow rate estimation method, non-transitory computer-readable storage medium storing gas flow rate estimation program, leakage gasdetection device, leakage gas detection method, and detection data processing device12 Mar 2026US 2026/0071904 A1Konica Minolta, Inc.
- Electromagnetic wave measuring apparatus, method, and recording medium6 Mar 2025US 2025/0076191 A1Advantest Corporation
Most cited
By later US patents
- Quantitative imaging of gas emissions utilizing optical techniques45US 6,803,577 B2Gas Optics Sweden AB · 2004
- Non-mechanical optical path switching and its application to dual beam spectroscopy including gas filter correlation radiometry30US 5,128,797 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1992
- Miniaturized spectrometer8US 6,956,648 B2Scan Messtechnik Gesellschaft Mbh · 2005
- Sensor characterization through forward voltage measurements4US 10,852,230 B1Covidien LP · 2020
- Background radiance estimation and gas concentration-length quantification method for optical gas imaging camera3US 10,234,380 B1Konica Minolta Laboratory U.S.A., Inc. · 2019