Dual resolution spectrometer, and spectrometric measurement apparatus and method using the spectrometer
US-12332164-B2 · Jun 17, 2025 · US
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Littrow mirror spectrometers
Littrow mirror spectrometers · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01J3/22 |
| Official title | Littrow mirror spectrometers |
| Display label | Littrow mirror spectrometers |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dual resolution spectrometer, and spectrometric measurement apparatus and method using the spectrometer
US-2024035957-A1 · Feb 1, 2024 · US
Echelle spectrometer
US-11639874-B2 · May 2, 2023 · US
Spectrally-resolved raman water lidar
US-11402511-B2 · Aug 2, 2022 · US
Echelle Spectrometer
US-2022221340-A1 · Jul 14, 2022 · US
Temperature insensitive filter
US-11360262-B2 · Jun 14, 2022 · US
Spectral imaging system
US-11346718-B2 · May 31, 2022 · US
Temperature insensitive filter
US-2021063638-A1 · Mar 4, 2021 · US
Immersed reflective triplet imaging spectrometer
US-10677651-B1 · Jun 9, 2020 · US
Spectral Imaging System
US-2020124477-A1 · Apr 23, 2020 · US
Spectrophotometric device with a plurality of spectral measurement bands
US-10527493-B2 · Jan 7, 2020 · US
Spectrophotometric device with a plurality of spectral measurement bands
US-2019339125-A1 · Nov 7, 2019 · US
Spectrally-resolved raman water lidar
US-2019041525-A1 · Feb 7, 2019 · US
Wavelength dispersing device
US-10061083-B2 · Aug 28, 2018 · US
Spectral apparatus, detection apparatus, light source apparatus, reaction apparatus, and measurement apparatus
US-9594253-B2 · Mar 14, 2017 · US
Wavelength dispersing device
US-2016341901-A1 · Nov 24, 2016 · US
Wavelength dispersing device
US-9354365-B2 · May 31, 2016 · US