Gas control system and program for gas control system
US-10138555-B2 · Nov 27, 2018 · US
characterised by the use of electric means
characterised by the use of electric means · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05D21/02 |
| Official title | characterised by the use of electric means |
| Display label | characterised by the use of electric means |
| Total patents | 232 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 11 |
| 2017 | 25 |
| 2018 | 21 |
| 2019 | 24 |
| 2020 | 21 |
| 2021 | 31 |
| 2022 | 29 |
| 2023 | 14 |
| 2024 | 28 |
| 2025 | 11 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for providing deionized water with dynamic electrical resistivity
US-2018304215-A1 · Oct 25, 2018 · US
Neutralization plant
US-2018257056-A1 · Sep 13, 2018 · US
System and method for producing temperature stable chemical solutions
US-2018243704-A1 · Aug 30, 2018 · US
Crude oil blending using total boiling point analysis
US-10040041-B2 · Aug 7, 2018 · US
Identification of calibration deviations of pH-measuring devices
US-2018216059-A1 · Aug 2, 2018 · US
Biogas Blending and Verification Systems and Methods
US-2018155649-A1 · Jun 7, 2018 · US
Decomposition detecting unit, concentration measuring unit, and concentration control apparatus
US-9970865-B2 · May 15, 2018 · US
System and method for control performance monitoring
US-9964967-B2 · May 8, 2018 · US
Oil and water emulsion detection and control for desalters
US-2018119031-A1 · May 3, 2018 · US
Automatic pH adjustment device
US-9952606-B2 · Apr 24, 2018 · US
An On-Line Control and Reaction Process for pH Adjustment
US-2017342663-A1 · Nov 30, 2017 · US
Method for determining pattern of mold for imprint, imprint method, and apparatus
US-9829789-B2 · Nov 28, 2017 · US
Method for continuously producing a product by way of at least two coupled-together chemical reactions
US-2017322566-A1 · Nov 9, 2017 · US
Control of fluid catalytic cracking process for minimizing additive usage in the desulfurization of petroleum feedstocks
US-9764314-B2 · Sep 19, 2017 · US
METHOD FOR PREDICTING THE DYNAMIC pH RANGE OF A BUFFER
US-2017232363-A1 · Aug 17, 2017 · US
Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment
US-2017212484-A1 · Jul 27, 2017 · US
Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment
US-2017213451-A1 · Jul 27, 2017 · US
Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment
US-2017212530-A1 · Jul 27, 2017 · US
Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment
US-2017212532-A1 · Jul 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G05D21/02?
- CPC G05D21/02 is the Cooperative Patent Classification code for “characterised by the use of electric means.”
- How many patents are filed under CPC G05D21/02 (characterised by the use of electric means)?
- Our database includes 232 publications tagged with this CPC code.
- Is patent activity under CPC G05D21/02 growing?
- Publication counts under this code: 28 in 2024 vs 11 in 2025 (latest complete years).