G01J 2003/1234
Continuously variable if [cvif]
Official title: {Continuously variable IF [CVIF]; Wedge type}
G01J2003/1234 (Continuously variable if [cvif]) appears on 93 US grants and 94 published applications in this corpus.
Search patents in G01J- Granted patents
- 93
- Published applications
- 94
- Assignees
- 66
- Inventors
- 186
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 6 |
| 2003 | 3 | 3 |
| 2004 | 0 | 0 |
| 2005 | 3 | 0 |
| 2006 | 3 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 7 |
| 2015 | 1 | 5 |
| 2016 | 5 | 7 |
| 2017 | 9 | 9 |
| 2018 | 6 | 4 |
| 2019 | 7 | 7 |
| 2020 | 8 | 8 |
| 2021 | 9 | 7 |
| 2022 | 4 | 8 |
| 2023 | 3 | 4 |
| 2024 | 6 | 1 |
| 2025 | 5 | 5 |
By publication year. Applications have been published since 2001.
Recent patents
- Wavelength selection module, illumination system and metrology system4 Nov 2025US 12,460,971 B2ASML Netherlands B. V.
- Variable optical filter and a wavelength-selective sensor based thereon27 May 2025US 12,317,620 B2Viavi Solutions Inc.
- Device and method for spectral imaging29 Apr 2025US 12,287,240 B2Bar-Han University
- Optical filter8 Apr 2025US 12,271,013 B2Viavi Solutions Inc.
- Method of manufacturing a linearly variable optical filter25 Mar 2025US 12,258,658 B2Optics Balzers AG
- Variable optical filter and a wavelength-selective sensor based thereon13 Nov 2025US 2025/0351599 A1Viavi Solutions Inc.
- Device and method for spectral imaging16 Oct 2025US 2025/0321140 A1Bar-Ilan University
- Method of manufacturing an optical filter17 Jul 2025US 2025/0231331 A1Viavi Solutions Inc.
- Compact spectrometer24 Apr 2025US 2025/0130106 A1Trinamix GmbH
- Optical filter and spectrometer13 Feb 2025US 2025/0052610 A1Viavi Solutions Inc.
Most cited
By later US patents
- Colorimeter and calibration system293US 5,272,518 AHewlett-Packard Company · 1993
- Spectrometer apparatus254US 5,166,755 A1992
- Wedge-filter spectrometer156US 4,957,371 ASanta Barbara Research Center · 1990
- Apparatus and method for measuring optical characteristics of an object51US 6,570,654 B2LJ Laboratories, L.L.C. · 2003
- Efficient fiber coupling of light to interferometric instrumentation46US 5,666,195 AElectro-Optical Sciences, Inc. · 1997