- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 41/90 - Coating or impregnating for obtaining at least two superposed coatings having different compositions at least one coating being a metal
Patent holdings for IPC class C04B 41/90
Total number of patents in this class: 104
10-year publication summary
|
6
|
8
|
7
|
9
|
10
|
1
|
5
|
9
|
11
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rolls-Royce Corporation | 1719 |
5 |
| Toyo Tanso Co., Ltd. | 225 |
4 |
| Sumitomo Electric Hardmetal Corp. | 1006 |
3 |
| Murata Manufacturing Co., Ltd. | 23702 |
3 |
| NGK Insulators, Ltd. | 4792 |
3 |
| Curamik Electronics GmbH | 18 |
3 |
| Oerlikon Surface Solutions AG, Pfaffikon | 558 |
3 |
| Rogers Germany GmbH | 133 |
3 |
| Safran Aircraft Engines | 6039 |
3 |
| Rtx Corporation | 9109 |
3 |
| Kyocera Corporation | 13344 |
2 |
| Cardiac Pacemakers, Inc. | 3052 |
2 |
| Denka Company Limited | 2459 |
2 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 125 |
2 |
| Safran Ceramics | 392 |
2 |
| The Swatch Group Research and Development Ltd | 813 |
2 |
| 3m Innovative Properties Company | 17957 |
1 |
| Siemens AG | 24565 |
1 |
| SAFRAN S.A. | 573 |
1 |
| SNECMA S.A. | 1150 |
1 |
| Other owners | 55 |