- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment 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: 548
10-year publication summary
|
28
|
24
|
32
|
57
|
40
|
50
|
60
|
41
|
42
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13224 |
25 |
| First Point A.S. | 36 |
18 |
| Sika Technology AG | 2867 |
9 |
| Halliburton Energy Services, Inc. | 20911 |
8 |
| Construction Research & Technology GmbH | 641 |
8 |
| Armacell Enterprise GmbH & Co. KG | 165 |
7 |
| King Fahd University of Petroleum and Minerals | 1212 |
7 |
| Chryso | 116 |
6 |
| Hüttenes-Albertus Chemische Werke GmbH | 157 |
6 |
| Hilti Aktiengesellschaft | 3498 |
5 |
| Fluorchemie GmbH Frankfurt | 12 |
5 |
| Tokuyama Corporation | 1395 |
5 |
| 3m Innovative Properties Company | 17823 |
4 |
| Adhesives Technology Corporation | 45 |
4 |
| Aramco Services Company | 3987 |
4 |
| Arclin USA, LLC. | 82 |
4 |
| Pittsburgh Corning Europe NV | 27 |
4 |
| Praxair S.T. Technology, Inc. | 129 |
4 |
| USG Interiors, LLC | 307 |
4 |
| Wacker Chemie AG | 2111 |
4 |
| Other owners | 407 |