- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/06 - Preparation of sulfurPurification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
Patent holdings for IPC class C01B 17/06
Total number of patents in this class: 33
10-year publication summary
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4
|
1
|
2
|
4
|
2
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4
|
1
|
4
|
2
|
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
|
|---|---|---|
| Eastman Chemical Company | 2079 |
4 |
| Flexsys IP Holdings, LLC | 33 |
4 |
| Paques I.P. B.V. | 69 |
3 |
| ENGITEC TECHNOLOGIES S.p.A. | 28 |
2 |
| Michigan Technological University | 160 |
2 |
| Hunan Fortune Environmental Technology Co., LTD. | 2 |
2 |
| Central South University | 475 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1255 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1219 |
1 |
| Innovator Energy LLC | 73 |
1 |
| Kunming University of Science and Technology | 231 |
1 |
| New Sky Energy Intellectual Property Holding Company, LLC | 1 |
1 |
| Refined Technologies, Inc. | 54 |
1 |
| Enlighten Innovations Inc. | 93 |
1 |
| FLSmidth A/S | 785 |
1 |
| Sulfurcycle Intellectual Property Holding Company LLC | 6 |
1 |
| Suzhou Canastar New-materials Technology Corporation | 3 |
1 |
| Hunan Brunp EV Recycling Co., Ltd. | 376 |
1 |
| Flexsys Holdings, Inc. | 4 |
1 |
| Shell USA, Inc. | 1291 |
1 |
| Other owners | 2 |