- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 111/20 - Resistance against chemical, physical or biological attack
Patent holdings for IPC class C04B 111/20
Total number of patents in this class: 295
10-year publication summary
|
17
|
27
|
32
|
33
|
18
|
28
|
19
|
17
|
14
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CR Minerals Company, LLC | 24 |
14 |
| Construction Research & Technology GmbH | 641 |
9 |
| Halliburton Energy Services, Inc. | 20944 |
5 |
| NGK Insulators, Ltd. | 5016 |
5 |
| AM Technology Limited | 15 |
5 |
| Solidia Technologies, Inc. | 89 |
5 |
| Wacker Chemie AG | 2111 |
5 |
| Eagle Strong Investments, LLC | 11 |
5 |
| The Regents of the University of California | 20059 |
4 |
| A.L.M. Holding Company | 83 |
4 |
| Ergon Asphalt & Emulsions, Inc. | 117 |
4 |
| Sika Technology AG | 2875 |
4 |
| 3m Innovative Properties Company | 17795 |
3 |
| Dow Global Technologies LLC | 10402 |
3 |
| Chryso | 116 |
3 |
| Harbin Engineering University | 146 |
3 |
| International Technology Center | 12 |
3 |
| Italcementi S.p.A. | 68 |
3 |
| Rutgers, The State University of New Jersey | 1900 |
3 |
| Yara International ASA | 861 |
3 |
| Other owners | 202 |