- 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: 199
10-year publication summary
|
5
|
9
|
6
|
5
|
13
|
17
|
26
|
33
|
29
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Terra CO2 Technology Holdings, Inc. | 38 |
16 |
| ThyssenKrupp AG | 3409 |
7 |
| KHD Humboldt Wedag GmbH | 192 |
5 |
| Hsustainability GmbH | 60 |
5 |
| ThyssenKrupp Industrial Solutions AG | 630 |
4 |
| Aalborg Portland A/S | 5 |
4 |
| Heidelberg Materials AG | 102 |
4 |
| thyssenkrupp Polysius GmbH | 165 |
4 |
| OLIMENT® GmbH | 14 |
4 |
| Bauhaus-Universitat Weimar | 15 |
3 |
| Colas | 159 |
3 |
| Holcim Technology Ltd. | 485 |
3 |
| U.S. Silica Company | 112 |
3 |
| Vito NV | 339 |
3 |
| Asphalt Sciences LLC, DBA Asphalt Sciences LLC | 18 |
3 |
| FLSmidth A/S | 789 |
3 |
| Cosentino Research & Development, S.L. | 50 |
3 |
| Cemgreen ApS | 14 |
3 |
| EM Resources LLC | 36 |
3 |
| Board of Regents, The University of Texas System | 6107 |
2 |
| Other owners | 114 |