Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2025067924-A1 · Feb 27, 2025 · US
containing molecular hydrogen
containing molecular hydrogen · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03C2201/21 |
| Official title | containing molecular hydrogen |
| Display label | containing molecular hydrogen |
| Total patents | 33 |
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 | 5 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-12169303-B2 · Dec 17, 2024 · US
Substrate for a reflective optical element
US-11987521-B2 · May 21, 2024 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2024111087-A1 · Apr 4, 2024 · US
Synthetic quartz glass substrate and making method
US-11851364-B2 · Dec 26, 2023 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-11719881-B2 · Aug 8, 2023 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2022342148-A1 · Oct 27, 2022 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-11409033-B2 · Aug 9, 2022 · US
Diffuser material of synthetically produced quartz glass and method for the manufacture of a molded body consisting fully or in part thereof
US-11390556-B2 · Jul 19, 2022 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2021311251-A1 · Oct 7, 2021 · US
Substrate for a reflective optical element
US-2021116616-A1 · Apr 22, 2021 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-10928584-B2 · Feb 23, 2021 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2020319401-A1 · Oct 8, 2020 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-10557987-B2 · Feb 11, 2020 · US
Method for loading a blank composed of fused silica with hydrogen, lens element and projection lens
US-10427965-B2 · Oct 1, 2019 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-2019258001-A1 · Aug 22, 2019 · US
Synthetic quartz glass substrate and making method
US-2019225539-A1 · Jul 25, 2019 · US
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
US-10228510-B2 · Mar 12, 2019 · US
Diffuser material of synthetically produced quartz glass and method for the manufacture of a molded body consisting fully or in part thereof
US-2019031555-A1 · Jan 31, 2019 · US
Method of making an optical fiber containing an alkali metal in the core
US-9932265-B2 · Apr 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C2201/21?
- CPC C03C2201/21 is the Cooperative Patent Classification code for “containing molecular hydrogen.”
- How many patents are filed under CPC C03C2201/21 (containing molecular hydrogen)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC C03C2201/21 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).