- 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 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
Patent holdings for IPC class C04B 28/02
Total number of patents in this class: 3221
10-year publication summary
225
|
203
|
238
|
298
|
264
|
256
|
181
|
233
|
218
|
64
|
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 |
251 |
Sika Technology AG | 2650 |
178 |
Construction Research & Technology GmbH | 640 |
116 |
Saudi Arabian Oil Company | 11322 |
114 |
Denka Company Limited | 2189 |
67 |
BASF SE | 19740 |
51 |
Wacker Chemie AG | 2091 |
49 |
Kao Corporation | 4843 |
47 |
Holcim Technology Ltd. | 868 |
42 |
Schlumberger Technology Corporation | 9690 |
39 |
Lafarge | 137 |
37 |
Dow Global Technologies LLC | 10147 |
36 |
GCP Applied Technologies Inc. | 451 |
34 |
Aramco Services Company | 3504 |
33 |
Nippon Shokubai Co., Ltd. | 1487 |
31 |
CURTIS, Philip, Anthony | 497 |
31 |
Chryso | 112 |
30 |
Schlumberger Canada Limited | 6913 |
26 |
Schlumberger Technology B.v. | 4951 |
25 |
Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
25 |
Other owners | 1959 |