G01J 3/1838
Holographic gratings
Official title: {Holographic gratings}
G01J3/1838 (Holographic gratings) appears on 178 US grants and 127 published applications in this corpus.
Search patents in G01J- Granted patents
- 178
- Published applications
- 127
- Assignees
- 95
- Inventors
- 256
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 2 |
| 2003 | 6 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 4 | 4 |
| 2007 | 5 | 6 |
| 2008 | 2 | 6 |
| 2009 | 4 | 2 |
| 2010 | 4 | 3 |
| 2011 | 2 | 3 |
| 2012 | 3 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 3 |
| 2015 | 5 | 7 |
| 2016 | 4 | 4 |
| 2017 | 6 | 5 |
| 2018 | 11 | 9 |
| 2019 | 12 | 10 |
| 2020 | 10 | 14 |
| 2021 | 7 | 5 |
| 2022 | 6 | 4 |
| 2023 | 6 | 5 |
| 2024 | 3 | 8 |
| 2025 | 10 | 10 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Remote sensing system with time-of-flight sensor, active illuminator and light sensing system1 Sep 2026US 12,721,527 B2Omni Medsci, Inc.
- Wearable device for differential measurement on pulse rate and blood flow31 Mar 2026US 12,588,820 B2Omni Medsci, Inc.
- Measurements using camera imaging tissue comprising skin or the hand2 Dec 2025US 12,484,787 B2Omni Medsci, Inc.
- Portable biosensor for air sample21 Oct 2025US 12,449,308 B2
- System, method and apparatus for 3d hyperspectral imaging4 Dec 2025US 2025/0369800 A1Posco Holdings Inc.
- Spectrometers having a custom slit width2 Oct 2025US 2025/0306336 A1
- Spectrometer system with volume holographic light guide element19 Jun 2025US 2025/0198842 A1National Central University
- Holographic grating exposure system and holographic grating imaging spectrometer17 Apr 2025US 2025/0123146 A1Hon Hai Precision Industry Co., Ltd.
- Use of a dispersive optical element as a spectral recombiner for an advanced volume hologram filter (avhf) and optical imaging systems employing such filter6 Mar 2025US 2025/0076811 A1
Most cited
By later US patents
- Chemical analyzer253US 5,314,825 ASchiapparelli Biosystems, Inc. · 1994
- System for automatic color calibration156US 6,459,425 B12002
- Optical devices having a wavelength-tunable dispersion assembly that has a volume dispersive diffraction grating154US 6,583,873 B1Carnegie Institution of Washington · 2003
- Programmable spectral imaging system106US 7,342,658 B2Eastman Kodak Company · 2008
- Absorbance, turbidimetric, fluorescence and nephelometric photometer97US 4,730,922 AE. I. Du Pont de Nemours and Company · 1988