- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/36 - Manufacture of hydraulic cements in general
Patent holdings for IPC class C04B 7/36
Total number of patents in this class: 405
10-year publication summary
|
17
|
19
|
26
|
21
|
12
|
23
|
27
|
48
|
51
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp AG | 3287 |
23 |
| ThyssenKrupp Industrial Solutions AG | 631 |
16 |
| Holcim Technology Ltd. | 991 |
14 |
| KHD Humboldt Wedag GmbH | 191 |
14 |
| ExxonMobil Research And Engineering Company | 2572 |
13 |
| FLSmidth A/S | 772 |
12 |
| thyssenkrupp Polysius GmbH | 131 |
12 |
| Sudbayerisches Portland-zementwerk Gebr. Wiesbock & Co. GmbH | 17 |
10 |
| Taiheiyo Cement Corporation | 237 |
9 |
| Arelac, Inc. | 102 |
9 |
| Halliburton Energy Services, Inc. | 20901 |
5 |
| ELEX CemCat AG | 6 |
5 |
| GCP Applied Technologies Inc. | 468 |
5 |
| Italcementi S.p.A. | 68 |
5 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3985 |
5 |
| Terra CO2 Technology Holdings, Inc. | 37 |
5 |
| FLSmidth Cement A/S | 109 |
5 |
| The Regents of the University of California | 19929 |
4 |
| Arizona Board of Regents on behalf of Arizona State University | 2635 |
4 |
| CalPortland Company | 47 |
4 |
| Other owners | 226 |