- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 22/14 - Acids or salts thereof containing sulfur in the anion, e.g. sulfides
Patent holdings for IPC class C04B 22/14
Total number of patents in this class: 482
10-year publication summary
|
23
|
27
|
28
|
28
|
28
|
52
|
59
|
46
|
50
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denka Company Limited | 2720 |
77 |
| Sika Technology AG | 3004 |
25 |
| Halliburton Energy Services, Inc. | 21338 |
19 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 580 |
17 |
| Hilti Aktiengesellschaft | 3668 |
14 |
| Construction Research & Technology GmbH | 602 |
10 |
| United States Gypsum Company | 927 |
10 |
| BASF SE | 21303 |
6 |
| Kao Corporation | 5076 |
6 |
| Knauf Gips KG | 642 |
6 |
| Amrize Technology Switzerland LLC | 717 |
6 |
| Taiheiyo Cement Corporation | 243 |
5 |
| Tokuyama Corporation | 1477 |
5 |
| Ecocem Materials Ltd. | 50 |
5 |
| Hubcon Co., Ltd. | 6 |
5 |
| Samsung E&A Co., Ltd. | 64 |
5 |
| BASF Construction Solutions GmbH | 13 |
4 |
| CertainTeed Gypsum, Inc. | 220 |
4 |
| GCP Applied Technologies Inc. | 473 |
4 |
| Mitsubishi Materials Corporation | 2472 |
4 |
| Other owners | 245 |