Patent holdings for IPC class C04B 28/02

Total number of patents in this class: 3483

10-year publication summary

238
298
265
259
184
236
235
197
194
141
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
21338
224
Sika Technology AG
3004
193
Saudi Arabian Oil Company
14235
133
Construction Research & Technology GmbH
602
103
Denka Company Limited
2720
92
Kao Corporation
5076
58
Wacker Chemie AG
2112
49
BASF SE
21303
47
Dow Global Technologies LLC
10944
44
Schlumberger Technology Corporation
11818
39
Nippon Shokubai Co., Ltd.
1538
38
Aramco Services Company
4195
36
Lafarge
120
36
GCP Applied Technologies Inc.
473
34
Holcim Technology Ltd.
485
32
Schlumberger Canada Limited
7606
25
Schlumberger Technology B.v.
5298
24
Services Petroliers Schlumberger
6024
24
Yara International ASA
900
22
Kuraray Co., Ltd.
3589
20
Other owners 2210