- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/172 - Sorting
Patent holdings for IPC class C01B 32/172
Total number of patents in this class: 108
10-year publication summary
|
8
|
11
|
18
|
21
|
14
|
7
|
3
|
6
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36455 |
25 |
| Kao Corporation | 5026 |
7 |
| Northwestern University | 3478 |
7 |
| The Board of Trustees of the Leland Stanford Junior University | 6590 |
4 |
| National Research Council of Canada | 1571 |
4 |
| Zeon Corporation | 4123 |
4 |
| Wisconsin Alumni Research Foundation | 3923 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3799 |
3 |
| Aligned Carbon, Inc. | 4 |
3 |
| The Regents of the University of California | 20366 |
2 |
| Yazaki Corporation | 6885 |
2 |
| Lawrence Livermore National Security, LLC | 1953 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 2782 |
2 |
| Meijo University | 123 |
2 |
| Nano-C, Inc. | 72 |
2 |
| National University Corporation Nara Institute of Science and Technology | 236 |
2 |
| Universidad Del Pais VASCO | 76 |
2 |
| Yale University | 2460 |
2 |
| The Board of Trustees of the Leland Stanford Junior University, Office of the General Counsel | 13 |
2 |
| Clap Co., Ltd. | 85 |
2 |
| Other owners | 26 |