- 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 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: 384
10-year publication summary
|
9
|
10
|
23
|
27
|
28
|
28
|
26
|
49
|
57
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denka Company Limited | 2189 |
56 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
23 |
| Sika Technology AG | 2650 |
19 |
| Halliburton Energy Services, Inc. | 20165 |
16 |
| Construction Research & Technology GmbH | 640 |
10 |
| United States Gypsum Company | 1019 |
10 |
| Hilti Aktiengesellschaft | 3227 |
7 |
| Taiheiyo Cement Corporation | 237 |
6 |
| BASF SE | 19740 |
5 |
| Kao Corporation | 4843 |
5 |
| Holcim Technology Ltd. | 868 |
5 |
| BASF Construction Solutions GmbH | 13 |
4 |
| CertainTeed Gypsum, Inc. | 180 |
4 |
| Mitsubishi Materials Corporation | 2378 |
4 |
| Obayashi Corporation | 55 |
4 |
| Saudi Arabian Oil Company | 11322 |
4 |
| Solidia Technologies, Inc. | 113 |
4 |
| JSR Corporation | 2476 |
3 |
| Georgia-Pacific Gypsum LLC | 204 |
3 |
| BPB Limited | 49 |
3 |
| Other owners | 189 |