G01J 2001/242
Filter wheel, i.e. absorption filter series graduated
Official title: {Filter wheel, i.e. absorption filter series graduated}
G01J2001/242 (Filter wheel, i.e. absorption filter series graduated) appears on 9 US grants and 6 published applications in this corpus.
Search patents in G01J- Granted patents
- 9
- Published applications
- 6
- Assignees
- 8
- Inventors
- 35
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 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 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for testing light sources3 Feb 2026US 12,540,845 B2Teradyne, Inc.
- Filter device for an optical module for a lab-on-a-chip analysis device, optical module for a lab-on-a-chip analysis device and method for operating an optical module for a lab-on-a-chip analysis device13 Jan 2026US 12,523,605 B2Robert Bosch GmbH
- Filter device for an optical module for a lab-on-a-chip analysis device, optical module for a lab-on-a-chip analysis device and method for operating an optical module for a lab-on-a-chip analysis device21 May 2024US 11,988,605 B2Robert Bosch GmbH
- Color and luminance measuring device including filter unit23 Aug 2022US 11,422,035 B2ANI. Co. Ltd
- Color classification apparatus10 Feb 1998US 5,717,605 AOlympus Optical Co., Ltd.
- System for testing light sources11 Sep 2025US 2025/0283754 A1Teradyne, Inc.
- Filter Device for an Optical Module for a Lab-on-a-Chip Analysis Device, Optical Module for a Lab-on-a-Chip Analysis Device and Method for Operating an Optical Module for a Lab-on-a-Chip Analysis Device18 Jul 2024US 2024/0241054 A1Robert Bosch GmbH
- Filter Device for an Optical Module for a Lab-on-a-Chip Analysis Device, Optical Module for a Lab-on-a-Chip Analysis Device and Method for Operating an Optical Module for a Lab-on-a-Chip Analysis Device11 Aug 2022US 2022/0252513 A1Robert Bosch GmbH
- Color and luminance measuring device including filter unit14 Apr 2022US 2022/0113194 A1ANI. Co. Ltd
- Apparatus for monitoring vacuum ultraviolet and plasma process equipment including the same29 Dec 2016US 2016/0379802 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Color classification apparatus54US 5,717,605 AOlympus Optical Co., Ltd. · 1998
- Method and apparatus for determining a material's characteristics by photoreflectance using improved computer control25US 5,270,797 ABrooklyn College Foundation · 1993
- Method and apparatus for determining a material's characteristics by photoreflectance21US 5,260,772 A1993
- Method for in-situ determination of the fermi level in GaAs and similar materials by photoreflectance8US 5,159,410 A1992
- Photometer7US 4,737,029 ATokyo Kogaku Kikai Kabushiki Kaisha · 1988