- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/34 - Compounds of chromium
Patent holdings for IPC class C09C 1/34
Total number of patents in this class: 52
10-year publication summary
|
3
|
4
|
1
|
3
|
2
|
2
|
1
|
2
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1112 |
6 |
| Ferro Corporation | 237 |
4 |
| HUBLOT SA, Geneve | 158 |
3 |
| Merck Patent GmbH | 5773 |
2 |
| Imerys Minerals Limited | 117 |
2 |
| James R. Glidewell Dental Ceramics, Inc. | 250 |
2 |
| Kobo Products, Inc. | 51 |
2 |
| Sikemia | 2 |
2 |
| Nissan Chemical Corporation | 2077 |
2 |
| Tomatec Co., Ltd. | 12 |
2 |
| 3m Innovative Properties Company | 17770 |
1 |
| The Regents of the University of California | 20137 |
1 |
| Boe Technology Group Co., Ltd. | 41698 |
1 |
| ALANOD Aluminium-veredlung GmbH & Co. KG | 3 |
1 |
| Aqua Resources Corporation | 10 |
1 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3892 |
1 |
| Beijing Gignano Biointerface Co. Ltd | 2 |
1 |
| CertainTeed Corporation | 243 |
1 |
| ECKART GmbH | 317 |
1 |
| Inxel Trademark & Patents Sagl | 5 |
1 |
| Other owners | 15 |