- 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 7/19 - Portland cements
Patent holdings for IPC class C04B 7/19
Total number of patents in this class: 55
10-year publication summary
4
|
2
|
2
|
2
|
4
|
2
|
3
|
1
|
6
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Holcim Technology Ltd. | 868 |
4 |
Nippon Steel Corporation | 5649 |
4 |
The Regents of the University of California | 18943 |
3 |
Arizona Board of Regents on behalf of Arizona State University | 2226 |
3 |
JFE Steel Corporation | 6067 |
3 |
Roman Cement, LLC | 45 |
3 |
Sika Technology AG | 2650 |
3 |
Nippon Steel Esment Kanto Co., Ltd. | 2 |
2 |
Saint-Gobain Weber | 175 |
2 |
Ube Industries, Ltd. | 921 |
2 |
Nippon Steel Slag Products Co., Ltd. | 2 |
2 |
Schlumberger Technology Corporation | 9690 |
1 |
Kao Corporation | 4843 |
1 |
Capitol Aggregates, Inc. | 9 |
1 |
Denka Company Limited | 2189 |
1 |
Fundacao Educacional de Criciuma | 2 |
1 |
InterCement Brasil S.A. | 7 |
1 |
LafargeHolcim Ltd | 23 |
1 |
NovaFrit International Inc. | 2 |
1 |
NUtech Ventures | 301 |
1 |
Other owners | 15 |