- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 38/04 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by dissolving-out added substances
Patent holdings for IPC class C04B 38/04
Total number of patents in this class: 70
10-year publication summary
|
5
|
4
|
4
|
5
|
3
|
3
|
1
|
5
|
4
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20979 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10941 |
3 |
| Centre National de La Recherche Scientifique | 10516 |
2 |
| Hitachi Metals, Ltd. | 1973 |
2 |
| Corning Incorporated | 10300 |
2 |
| Eth Zurich | 1283 |
2 |
| Heraeus Quarzglas GmbH & Co. KG | 408 |
2 |
| Toyo Tanso Co., Ltd. | 220 |
2 |
| Universite Pierre et Marie Curie (Paris 6) | 535 |
2 |
| Ip2ipo Innovations Limited | 172 |
2 |
| Merck Patent GmbH | 5824 |
1 |
| Warsaw Orthopedic, Inc. | 3012 |
1 |
| Board of Regents, The University of Texas System | 5849 |
1 |
| President and Fellows of Harvard College | 5995 |
1 |
| The Board of Trustees of the University of Illinois | 2713 |
1 |
| Alma Mater Studiorum - Universita di Bologna | 403 |
1 |
| Central South University | 447 |
1 |
| Christian-albrechts-universitat zu Kiel | 238 |
1 |
| Daehyup Tech Co., Ltd | 5 |
1 |
| Drexel University | 1001 |
1 |
| Other owners | 38 |