- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/491 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates containing also titanium oxide or titanates based on lead zirconates and lead titanates
Patent holdings for IPC class C04B 35/491
Total number of patents in this class: 139
10-year publication summary
|
14
|
11
|
6
|
4
|
9
|
7
|
6
|
10
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2443 |
12 |
| Murata Manufacturing Co., Ltd. | 24526 |
11 |
| NGK Insulators, Ltd. | 4955 |
9 |
| Epcos AG | 701 |
8 |
| TDK Electronics AG | 933 |
8 |
| Xerox Corporation | 7013 |
5 |
| Konica Minolta, Inc. | 8729 |
5 |
| National Research Council of Canada | 1551 |
5 |
| Taiyo Yuden Co., Ltd. | 1936 |
5 |
| Oulun Yliopisto | 96 |
4 |
| Siemens AG | 24484 |
3 |
| FUJIFILM Corporation | 29367 |
3 |
| Robert Bosch GmbH | 42689 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3803 |
3 |
| Amosense Co., Ltd. | 486 |
3 |
| Airmar Technology Corporation | 58 |
2 |
| National Institute for Materials Science | 1108 |
2 |
| Rutgers, The State University of New Jersey | 1895 |
2 |
| UChicago Argonne, LLC | 914 |
2 |
| Youtec Co., Ltd. | 47 |
2 |
| Other owners | 42 |