Digital level
US-12546593-B2 · Feb 10, 2026 · US
in closed containers partially filled with liquid so as to leave a gas bubble
in closed containers partially filled with liquid so as to leave a gas bubble · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01C9/24 |
| Official title | in closed containers partially filled with liquid so as to leave a gas bubble |
| Display label | in closed containers partially filled with liquid so as to leave a gas bubble |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adjustable angle pocket level
US-12480764-B2 · Nov 25, 2025 · US
Combination tool
US-2025314491-A1 · Oct 9, 2025 · US
Apparatus, method, and system for fine tuning of capture devices
US-2025208491-A1 · Jun 26, 2025 · US
Magnet mounting and retention system for tool
US-12152909-B2 · Nov 26, 2024 · US
Vial with Improved Visibility for Level
US-2024318960-A1 · Sep 26, 2024 · US
Vial with improved visibility for level
US-12031845-B2 · Jul 9, 2024 · US
Motion-sensitive field effect transistor, motion detection system, and method
US-11913971-B2 · Feb 27, 2024 · US
Adjustable angle pocket level
US-2023332889-A1 · Oct 19, 2023 · US
Digital Level
US-2023288199-A1 · Sep 14, 2023 · US
Golf club alignment device
US-2023233914-A1 · Jul 27, 2023 · US
Magnet Mounting and Retention System for Tool
US-2023194258-A1 · Jun 22, 2023 · US
Vial with Improved Visibility for Level
US-2023083569-A1 · Mar 16, 2023 · US
Low-cost autonomous solarimetric station
US-11598665-B2 · Mar 7, 2023 · US
Magnet mounting and retention system for tool
US-11598635-B2 · Mar 7, 2023 · US
Target instrument and surveying system
US-11536568-B2 · Dec 27, 2022 · US
Vial with improved visibility for level
US-11506491-B2 · Nov 22, 2022 · US
Laser receiver and target with lighted indicators
US-11435182-B2 · Sep 6, 2022 · US
Motion-sensitive field effect transistor, motion detection system, and method
US-2022268805-A1 · Aug 25, 2022 · US
Low-cost autonomous solarimetric station
US-2022196470-A1 · Jun 23, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01C9/24?
- CPC G01C9/24 is the Cooperative Patent Classification code for “in closed containers partially filled with liquid so as to leave a gas bubble.”
- How many patents are filed under CPC G01C9/24 (in closed containers partially filled with liquid so as to leave a gas bubble)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC G01C9/24 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).