- All sections
- G - Physics
- G21C - Nuclear reactors
- G21C 3/20 - Details of the construction within the casing with coating on fuel or on inside of casingDetails of the construction within the casing with non-active interlayer between casing and active material
Patent holdings for IPC class G21C 3/20
Total number of patents in this class: 130
10-year publication summary
| 0 | 13 | 18 | 8 | 12 | 8 | 16 | 13 | 7 | 1 | 
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 
Principal owners for this class
| Owner | All patents | This class | 
|---|---|---|
| Westinghouse Electric Company LLC | 1156 | 23 | 
| Commissariat à l'énergie atomique et aux energies alternatives | 10964 | 22 | 
| Terrapower, LLC | 331 | 6 | 
| Battelle Energy Alliance, LLC | 589 | 5 | 
| Framatome | 190 | 5 | 
| UChicago Argonne, LLC | 926 | 4 | 
| Standard Nuclear, Inc. | 29 | 4 | 
| Atomic Energy of Canada Limited | 130 | 3 | 
| Framatome ANP | 92 | 3 | 
| Free Form Fibers, LLC | 39 | 3 | 
| General Atomics | 164 | 3 | 
| KEPCO Nuclear Fuel Co., Ltd. | 141 | 3 | 
| Korea Atomic Energy Research Institute | 443 | 3 | 
| University of Seoul Industry Cooperation Foundation | 289 | 3 | 
| Howe Industries, LLC | 10 | 3 | 
| Atomic Energy of Canada Limited / Énergie Atomique du Canada limitée | 104 | 3 | 
| Hitachi, Ltd. | 15612 | 2 | 
| Wisconsin Alumni Research Foundation | 3889 | 2 | 
| Korea Advanced Institute of Science and Technology | 4425 | 2 | 
| Areva NP | 211 | 2 | 
| Other owners | 26 | 
