Substrate processing apparatus and method of driving relay member
US-12027346-B2 · Jul 2, 2024 · US
Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas}
Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J41/02 |
| Official title | Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas} |
| Display label | Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas} |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reducing plasma formation in an ion pump
US-12014913-B2 · Jun 18, 2024 · US
Reducing plasma formation in an ion pump
US-2022328294-A1 · Oct 13, 2022 · US
Substrate processing apparatus and method of driving relay member
US-2022037125-A1 · Feb 3, 2022 · US
Fast pressure sensing system
US-11101120-B2 · Aug 24, 2021 · US
Fast pressure sensing system
US-2020161109-A1 · May 21, 2020 · US
Spark gap device and method of measurement of X-ray tube vacuum pressure
US-10605687-B2 · Mar 31, 2020 · US
Ground based systems and methods for testing reaction thrusters
US-10590919-B2 · Mar 17, 2020 · US
Ultrasensitive ion detector using carbon nanotubes or graphene
US-10036728-B2 · Jul 31, 2018 · US
Ionization gauge for high pressure operation
US-9952113-B2 · Apr 24, 2018 · US
Spark Gap Device And Method Of Measurement Of X-Ray Tube Vacuum Pressure
US-2017248485-A1 · Aug 31, 2017 · US
Ionization gauge for high pressure operation
US-2017146420-A1 · May 25, 2017 · US
System and method for identifying operating temperatures and modifying of integrated circuits
US-9625325-B2 · Apr 18, 2017 · US
Ionization gauge for high pressure operation
US-9593996-B2 · Mar 14, 2017 · US
Long lifetime cold cathode ionization vacuum gauge design
US-9588004-B2 · Mar 7, 2017 · US
Ground based systems and methods for testing reaction thrusters
US-2016273523-A1 · Sep 22, 2016 · US
System and method for identifying operating temperatures and modifying of integrated circuits
US-2016240479-A1 · Aug 18, 2016 · US
Ionization gauge with operational parameters and geometry designed for high pressure operation
US-9404827-B2 · Aug 2, 2016 · US
Ionization gauge with emission current and bias potential control
US-9383286-B2 · Jul 5, 2016 · US
Long lifetime cold cathode ionization vacuum gauge design
US-2016131548-A1 · May 12, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01J41/02?
- CPC H01J41/02 is the Cooperative Patent Classification code for “Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas}.”
- How many patents are filed under CPC H01J41/02 (Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas})?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC H01J41/02 growing?
- Publication counts under this code: 2 in 2022 vs 2 in 2024 (latest complete years).