G01M 15/108
Using optical methods
Official title: {using optical methods}
G01M15/108 (Using optical methods) appears on 73 US grants and 61 published applications in this corpus.
Search patents in G01M- Granted patents
- 73
- Published applications
- 61
- Assignees
- 56
- Inventors
- 181
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 0 | 7 |
| 2004 | 5 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 0 | 4 |
| 2012 | 6 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 4 |
| 2016 | 1 | 1 |
| 2017 | 6 | 4 |
| 2018 | 3 | 4 |
| 2019 | 4 | 1 |
| 2020 | 2 | 5 |
| 2021 | 3 | 3 |
| 2022 | 2 | 3 |
| 2023 | 5 | 4 |
| 2024 | 3 | 5 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and systems for optically sensing particulate matter11 Feb 2025US 12,222,272 B2Ford Global Technologies, LLC
- Monitoring full emissions profile of a natural gas compressor7 May 2024US 11,977,001 B2Kodiak Gas Services, LLC
- Exhaust gas monitoring system and method19 Mar 2024US 11,933,242 B2Hyundai Mobis Co., Ltd.
- Systems and methods for stationary engine emissions testing23 Jan 2024US 11,879,808 B14Sight Environmental, Inc.
- Method and apparatus for measuring engine oil consumption using laser induced breakdown spectroscopy3 Oct 2023US 11,774,351 B2Southwest Research Institute
- Autonomous real-time emissions monitor for marine exhaust emissions28 Nov 2024US 2024/0393214 A1Seaarctos Holdings, LLC
- Device for measuring at least one gaseous or solid material8 Aug 2024US 2024/0264087 A1AVL List GmbH
- Monitoring full emissions profile of a natural gas compressor25 Jul 2024US 2024/0248003 A1Kodiak Gas Services, LLC
- Systems and methods for stationary engine emissions testing16 May 2024US 2024/0159624 A14Sight Environmental, Inc.
- Monitoring full emissions profile of a natural gas compressor11 Jan 2024US 2024/0011868 A1Kodiak Gas Services, LLC
Most cited
By later US patents
- Apparatus for monitoring engine exhaust83US 7,696,501 B2Hartridge Limited · 2010
- Vehicle exhaust gas analysis system with gas blockage interlock59US 4,160,373 AUnited Technologies Corporation · 1979
- Exhaust gas analyzer having pressure and temperature compensation56US 3,958,122 AUnited Technologies Corporation · 1976
- Automatic gas analysis and purging system55US 3,973,848 AUnited Technologies Corporation · 1976
- Means and method for measuring and controlling smoke from an internal combustion engine53US 5,076,237 ABarrack Technology Limited · 1991