- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 20/06 - Expanding clay, perlite, vermiculite or like granular materials
Patent holdings for IPC class C04B 20/06
Total number of patents in this class: 106
10-year publication summary
|
9
|
4
|
10
|
9
|
7
|
9
|
3
|
5
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Binder + Co AG | 45 |
10 |
| United States Gypsum Company | 905 |
10 |
| Omya International AG | 772 |
8 |
| Akzo Nobel Chemicals International B.V. | 435 |
6 |
| Nouryon Chemicals International B.V. | 615 |
5 |
| Construction Research & Technology GmbH | 639 |
4 |
| Omya International AG | 9 |
4 |
| Georgia-Pacific Gypsum LLC | 216 |
2 |
| Henry Company, LLC | 231 |
2 |
| Aalborg Portland A/S | 5 |
2 |
| Mühl Engineering Systems GmbH | 4 |
2 |
| Thermprotec GmbH | 13 |
2 |
| Cemgreen ApS | 13 |
2 |
| Seegex | 3 |
2 |
| Xerox Corporation | 6974 |
1 |
| Aggregate Industries UK Limited | 20 |
1 |
| Board of Trustees of Michigan State University | 1205 |
1 |
| Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D | 6 |
1 |
| Denka Company Limited | 2643 |
1 |
| E2V Technologies (UK) Limited | 32 |
1 |
| Other owners | 39 |