- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 20/04 - Heat treatment
Patent holdings for IPC class C04B 20/04
Total number of patents in this class: 159
10-year publication summary
|
4
|
5
|
7
|
5
|
5
|
13
|
15
|
23
|
30
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Terra CO2 Technology Holdings, Inc. | 37 |
15 |
| ThyssenKrupp AG | 3291 |
6 |
| ThyssenKrupp Industrial Solutions AG | 632 |
4 |
| Asphalt Sciences LLC, DBA Asphalt Sciences LLC | 19 |
4 |
| Aalborg Portland A/S | 5 |
4 |
| Hsustainability GmbH | 39 |
4 |
| Bauhaus-Universitat Weimar | 19 |
3 |
| Colas | 161 |
3 |
| KHD Humboldt Wedag GmbH | 191 |
3 |
| U.S. Silica Company | 102 |
3 |
| FLSmidth A/S | 774 |
3 |
| Cemgreen ApS | 13 |
3 |
| thyssenkrupp Polysius GmbH | 131 |
3 |
| Board of Regents, The University of Texas System | 5808 |
2 |
| Mayo Foundation for Medical Education and Research | 3222 |
2 |
| Imerys Minerals Limited | 118 |
2 |
| Knauf Gips KG | 600 |
2 |
| Quest Diagnostics Investments LLC | 408 |
2 |
| Solidia Technologies, Inc. | 90 |
2 |
| The University of British Columbia | 1495 |
2 |
| Other owners | 87 |