- 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 28/26 - Silicates of the alkali metals
Patent holdings for IPC class C04B 28/26
Total number of patents in this class: 522
10-year publication summary
30
|
30
|
30
|
36
|
64
|
42
|
63
|
67
|
43
|
17
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saudi Arabian Oil Company | 11322 |
23 |
First Point A.S. | 36 |
17 |
Sika Technology AG | 2650 |
12 |
Halliburton Energy Services, Inc. | 20165 |
8 |
Construction Research & Technology GmbH | 640 |
8 |
Armacell Enterprise GmbH & Co. KG | 182 |
7 |
Fluorchemie GmbH Frankfurt | 16 |
7 |
King Fahd University of Petroleum and Minerals | 779 |
7 |
Hilti Aktiengesellschaft | 3227 |
6 |
Hüttenes-Albertus Chemische Werke GmbH | 150 |
6 |
3m Innovative Properties Company | 18406 |
4 |
Adhesives Technology Corporation | 43 |
4 |
Akzo Nobel Chemicals International B.V. | 520 |
4 |
Arclin USA, LLC. | 75 |
4 |
Chryso | 112 |
4 |
Pittsburgh Corning Europe NV | 18 |
4 |
Praxair S.T. Technology, Inc. | 133 |
4 |
USG Interiors, LLC | 324 |
4 |
Wacker Chemie AG | 2091 |
4 |
Rockwool A/S | 753 |
4 |
Other owners | 381 |