- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 18/04 - Waste materialsRefuse
Patent holdings for IPC class C04B 18/04
Total number of patents in this class: 335
10-year publication summary
|
20
|
19
|
17
|
21
|
21
|
26
|
23
|
37
|
38
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14446 |
6 |
| Halliburton Energy Services, Inc. | 21259 |
5 |
| Fluorchemie GmbH Frankfurt | 10 |
5 |
| Sika Technology AG | 3038 |
5 |
| Holcim Technology Ltd. | 496 |
4 |
| Shandong University | 1169 |
4 |
| The Regents of the University of California | 20989 |
3 |
| University of Florida Research Foundation, Inc. | 4232 |
3 |
| Ash Improvement Technology Inc. | 7 |
3 |
| Denka Company Limited | 2779 |
3 |
| En-Tech Corporation | 13 |
3 |
| Graymont Western Canada Inc. | 54 |
3 |
| Betolar Oy | 36 |
3 |
| Carbon8 Systems Limited | 12 |
3 |
| Glass Processing Solutions, LLC d/b/a Sioneer | 5 |
3 |
| Black Asbestos Ltd | 3 |
3 |
| Hsustainability GmbH | 64 |
3 |
| Exero Well Integrity | 6 |
3 |
| Centre National de La Recherche Scientifique | 11164 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 3020 |
2 |
| Other owners | 266 |