Automatic identification method and device for planetary seismograph azimuth angles based on planetary sundial
US-2024426606-A1 · Dec 26, 2024 · US
by astronomical means (G01C21/24, G01C21/26 take precedence)
by astronomical means (G01C21/24, G01C21/26 take precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01C21/02 |
| Official title | by astronomical means (G01C21/24, G01C21/26 take precedence) |
| Display label | by astronomical means (G01C21/24, G01C21/26 take precedence) |
| Total patents | 68 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 8 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Astrophysical Timing Derived from Photometric Relative Phase Measurements of Periodic Stellar Variability
US-2024427295-A1 · Dec 26, 2024 · US
Position estimation device, moving object system, position estimation method, and non-transitory computer readable medium
US-2024416976-A1 · Dec 19, 2024 · US
Information processing apparatus, information processing method, and program
US-2024345592-A1 · Oct 17, 2024 · US
Semantic map with live updates
US-12104920-B2 · Oct 1, 2024 · US
Systems and methods for acquisition and tracking of unknown leo satellite signals
US-2024291558-A1 · Aug 29, 2024 · US
Polarization fusion orientation method for occluded environment
US-2024111062-A1 · Apr 4, 2024 · US
Semantic map with live updates
US-2024027222-A1 · Jan 25, 2024 · US
Semantic map with live updates
US-11808600-B2 · Nov 7, 2023 · US
Short arc initial orbit determining method based on gauss solution cluster
US-11662209-B2 · May 30, 2023 · US
Underwater celestial navigation beacon
US-11549814-B2 · Jan 10, 2023 · US
Systems and methods for determining the position of a device
US-11371846-B2 · Jun 28, 2022 · US
Semantic map with live updates
US-2022107204-A1 · Apr 7, 2022 · US
Representation learning-based star identification method
US-11288830-B2 · Mar 29, 2022 · US
Stellar-landscape/horizon image navigation
US-11237003-B2 · Feb 1, 2022 · US
Semantic map with live updates
US-11226207-B2 · Jan 18, 2022 · US
Remote guidance for object observation
US-11175803-B2 · Nov 16, 2021 · US
Systems and methods for northfinding
US-11150350-B2 · Oct 19, 2021 · US
Air duct system and measurement system and method for determining at least one parameter of an air flow emanating from an air outlet
US-11135897-B2 · Oct 5, 2021 · US
Short arc initial orbit determining method based on gauss solution cluster
US-2021199439-A1 · Jul 1, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01C21/02?
- CPC G01C21/02 is the Cooperative Patent Classification code for “by astronomical means (G01C21/24, G01C21/26 take precedence).”
- How many patents are filed under CPC G01C21/02 (by astronomical means (G01C21/24, G01C21/26 take precedence))?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC G01C21/02 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).