- All sections
- B - Performing operationstransporting
- B09C - Reclamation of contaminated soil
- B09C 1/02 - Extraction using liquids, e.g. washing, leaching
Patent holdings for IPC class B09C 1/02
Total number of patents in this class: 322
10-year publication summary
|
31
|
25
|
22
|
20
|
6
|
18
|
12
|
18
|
13
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Commissariat à l'énergie atomique et aux energies alternatives | 10975 |
7 |
| Envit, Environmental Technologies and Engineering Ltd. | 7 |
6 |
| Takenaka Corporation | 53 |
6 |
| Yoshino Gypsum Co., Ltd. | 263 |
6 |
| Hyundai Engineering & Construction Co., Ltd. | 23 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3576 |
4 |
| Taiheiyo Cement Corporation | 238 |
4 |
| Takenaka Civil Engineering & Construction Co., Ltd. | 9 |
4 |
| Custom Environmental Consulting LLC | 7 |
4 |
| Hitachi, Ltd. | 15867 |
3 |
| Dowa ECO-SYSTEM Co., Ltd. | 57 |
3 |
| Ethical Solutions, LLC | 14 |
3 |
| FRx Inc. | 4 |
3 |
| GreenStract, LLC | 9 |
3 |
| Indian Institute of Technology Bombay | 271 |
3 |
| M-I L.L.C. | 776 |
3 |
| OxyTec LLC | 10 |
3 |
| Tosoh Corporation | 1384 |
3 |
| Waseda University | 461 |
3 |
| Yissum Research Development Company of The Hebrew University of Jerusalem Ltd. | 1346 |
3 |
| Other owners | 244 |