- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 7/02 - Portland cement
Patent holdings for IPC class C04B 7/02
Total number of patents in this class: 340
10-year publication summary
43
|
24
|
23
|
40
|
27
|
35
|
34
|
40
|
39
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20165 |
18 |
Holcim Technology Ltd. | 868 |
12 |
Saudi Arabian Oil Company | 11322 |
12 |
Roman Cement, LLC | 45 |
9 |
Solidia Technologies, Inc. | 113 |
7 |
Tokuyama Corporation | 1248 |
7 |
Taiheiyo Cement Corporation | 237 |
6 |
CarbonCure Technologies Inc. | 80 |
5 |
Sika Technology AG | 2650 |
5 |
Sumitomo Osaka Cement Co., Ltd. | 783 |
5 |
Macrocement Industries Ltd. | 11 |
5 |
Construction Research & Technology GmbH | 640 |
4 |
ThyssenKrupp AG | 3086 |
4 |
ThyssenKrupp Industrial Solutions AG | 729 |
4 |
Aalborg Portland A/S | 5 |
4 |
Schlumberger Technology Corporation | 9690 |
3 |
Kao Corporation | 4843 |
3 |
University of Florida Research Foundation, Inc. | 3883 |
3 |
Calix Ltd | 86 |
3 |
King Saud University | 332 |
3 |
Other owners | 218 |