- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 28/20 - Sand-lime
Patent holdings for IPC class C04B 28/20
Total number of patents in this class: 7
10-year publication summary
|
1
|
1
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20944 |
2 |
| Construction Research & Technology GmbH | 641 |
1 |
| Knauf Gips KG | 607 |
1 |
| Sika Technology AG | 2875 |
1 |
| Shanghai Excilon New Materials Co., Ltd. | 5 |
1 |
| Shanghai Yousi Polymer Materials Technology Development Co., Ltd. | 1 |
1 |
| Other owners | 0 |