- 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: 581
10-year publication summary
|
30
|
36
|
64
|
42
|
63
|
68
|
43
|
43
|
37
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14305 |
27 |
| First Point A.S. | 36 |
18 |
| Sika Technology AG | 3015 |
10 |
| Halliburton Energy Services, Inc. | 21309 |
8 |
| Construction Research & Technology GmbH | 600 |
8 |
| Tokuyama Corporation | 1483 |
8 |
| King Fahd University of Petroleum and Minerals | 1587 |
7 |
| Hilti Aktiengesellschaft | 3701 |
6 |
| Armacell Enterprise GmbH & Co. KG | 159 |
6 |
| Hüttenes-Albertus Chemische Werke GmbH | 149 |
6 |
| 3m Innovative Properties Company | 17458 |
5 |
| Fluorchemie GmbH Frankfurt | 10 |
5 |
| IHI Corporation | 3527 |
5 |
| Akamai Materials, Inc. | 11 |
5 |
| Adhesives Technology Corporation | 56 |
4 |
| Aramco Services Company | 4192 |
4 |
| Arclin USA, LLC. | 93 |
4 |
| Eth Zurich | 1327 |
4 |
| Nagoya Institute of Technology | 256 |
4 |
| Obayashi Corporation | 86 |
4 |
| Other owners | 433 |