- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 20/00 - Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups and characterised by shape or grain distributionTreatment of materials according to more than one of the groups specially adapted to enhance their filling properties in mortars, concrete or artificial stoneExpanding or defibrillating materials
Patent holdings for IPC class C04B 20/00
Total number of patents in this class: 645
10-year publication summary
|
37
|
43
|
56
|
59
|
67
|
55
|
61
|
67
|
60
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21338 |
18 |
| Terra CO2 Technology Holdings, Inc. | 38 |
16 |
| Saudi Arabian Oil Company | 14235 |
11 |
| Schlumberger Technology Corporation | 11818 |
8 |
| Construction Research & Technology GmbH | 602 |
8 |
| Sika Technology AG | 3004 |
8 |
| James Hardie Technology Limited | 458 |
7 |
| Roman Cement, LLC | 48 |
7 |
| Forta, LLC | 54 |
7 |
| Dal-tile, LLC | 78 |
7 |
| BASF SE | 21303 |
6 |
| Denka Company Limited | 2720 |
6 |
| S.A. Lhoist Recherche et Developpement | 205 |
6 |
| U.S. Concrete, Inc. | 14 |
6 |
| The Boeing Company | 20160 |
5 |
| The Intellectual Gorilla GmbH | 29 |
5 |
| LIXIL Corporation | 772 |
5 |
| Washington State University | 498 |
5 |
| Rockwool A/S | 834 |
5 |
| Dow Global Technologies LLC | 10944 |
4 |
| Other owners | 495 |