- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 41/85 - Coating or impregnating with inorganic materials
Patent holdings for IPC class C04B 41/85
Total number of patents in this class: 545
10-year publication summary
|
49
|
31
|
37
|
36
|
25
|
31
|
15
|
26
|
15
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5173 |
57 |
| Ibiden Co., Ltd. | 1681 |
33 |
| Corning Incorporated | 10518 |
20 |
| General Electric Company | 13938 |
17 |
| Sumitomo Chemical Company, Limited | 8969 |
16 |
| Rtx Corporation | 10141 |
14 |
| Rolls-Royce Corporation | 1680 |
13 |
| 3m Innovative Properties Company | 17459 |
12 |
| Safran Ceramics | 450 |
9 |
| Solventum Intellectual Properties Company | 3424 |
9 |
| Hitachi Metals, Ltd. | 1824 |
7 |
| Rolls-Royce High Temperature Composites, Inc. | 136 |
7 |
| Goodrich Corporation | 2178 |
6 |
| Group14 Technologies, Inc. | 121 |
6 |
| Centre National de La Recherche Scientifique | 11077 |
5 |
| Rolex S.A. | 731 |
5 |
| Mirai Casting America Inc. | 87 |
5 |
| Honeywell International Inc. | 12770 |
4 |
| National Institute of Advanced Industrial Science and Technology | 3791 |
4 |
| Hitachi Zosen Corporation | 589 |
4 |
| Other owners | 292 |