G01N 2021/8609
Optical head specially adapted
Official title: {Optical head specially adapted}
G01N2021/8609 (Optical head specially adapted) appears on 56 US grants and 49 published applications in this corpus.
Search patents in G01N- Granted patents
- 56
- Published applications
- 49
- Assignees
- 49
- Inventors
- 155
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 3 | 3 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 2 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 4 |
| 2018 | 6 | 5 |
| 2019 | 4 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 5 |
| 2022 | 2 | 2 |
| 2023 | 3 | 3 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pinhole detection device3 Feb 2026US 12,540,903 B2Toyo Kohan Co.Ltd
- Method of reducing effect of stray light in optical sensor27 Jan 2026US 12,535,402 B2Canon Kabushiki Kaisha
- Moisture sensor and image forming apparatus7 Oct 2025US 12,436,100 B2Canon Kabushiki Kaisha
- Supercontinuum laser based web gauging system27 May 2025US 12,313,558 B2Thermo Electron Scientific Instruments LLC
- Measurement device and measurement method for measuring a physical quantity of a sheet9 Jan 2024US 11,867,636 B2Yokogawa Electric Corporation
- Pinhole detection device18 Jun 2026US 2026/0168934 A1Toyo Kohan Co.Ltd
- Moisture sensor and image forming apparatus8 Jan 2026US 2026/0009726 A1Canon Kabushiki Kaisha
- Optical line sensor20 Nov 2025US 2025/0354938 A1Vienex Corporation
- Information processing system, non-transitory computer readable medium storing program, and information processing method27 Mar 2025US 2025/0102443 A1FUJIFILM Business Innovation Corp.
- Photoluminescent imaging of semiconductor samples22 Aug 2024US 2024/0280473 A1
Most cited
By later US patents
- Reading devices and assay devices for use therewith123US 6,235,241 B1Unipath Limited · 2001
- Infrared reflectance densitometer84US 4,553,033 AXerox Corporation · 1985
- Sensing a narrow frequency band of radiation and gemstones65US 5,206,699 AGersan Establishment · 1993
- Apparatus and method for measuring light transmittance or reflectance38US 4,710,624 ADigirad Corporation · 1987
- Infrared constituent analyzer and control system37US 4,602,160 ASentrol Systems Ltd. · 1986