- 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: 49
10-year publication summary
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4
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1
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3
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2
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2
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1
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2
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1
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1151 |
5 |
| Vibrantz Corporation | 90 |
4 |
| HUBLOT SA, Geneve | 159 |
3 |
| Merck Patent GmbH | 5761 |
2 |
| Imerys Minerals Limited | 115 |
2 |
| James R. Glidewell Dental Ceramics, Inc. | 262 |
2 |
| Kobo Products, Inc. | 52 |
2 |
| Sikemia | 2 |
2 |
| Sun Chemical B.V. | 402 |
2 |
| Nissan Chemical Corporation | 2310 |
2 |
| Tomatec Co., Ltd. | 12 |
2 |
| 3m Innovative Properties Company | 17455 |
1 |
| The Regents of the University of California | 20987 |
1 |
| Boe Technology Group Co., Ltd. | 44771 |
1 |
| ALANOD Aluminium-veredlung GmbH & Co. KG | 3 |
1 |
| Aqua Resources Corporation | 9 |
1 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3940 |
1 |
| Beijing Gignano Biointerface Co. Ltd | 2 |
1 |
| CertainTeed Corporation | 204 |
1 |
| ECKART GmbH | 311 |
1 |
| Other owners | 12 |