- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 32/168 - After-treatment
Patent holdings for IPC class C01B 32/168
Total number of patents in this class: 574
10-year publication summary
|
7
|
20
|
51
|
73
|
112
|
75
|
74
|
73
|
51
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 3854 |
26 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
23 |
| Tsinghua University | 5426 |
23 |
| Lintec of America, Inc. | 158 |
18 |
| The Furukawa Electric Co., Ltd. | 3486 |
13 |
| Hitachi Zosen Corporation | 609 |
13 |
| LG Chem, Ltd. | 17205 |
12 |
| International Business Machines Corporation | 60644 |
12 |
| Sumitomo Electric Industries, Ltd. | 14131 |
9 |
| University of Tsukuba | 561 |
9 |
| LG Energy Solution, Ltd. | 10813 |
9 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
8 |
| Goodrich Corporation | 2081 |
8 |
| Lintec Corporation | 1915 |
8 |
| Molecular Rebar Design, LLC | 68 |
8 |
| Tokusen Kogyo Co., Ltd. | 75 |
7 |
| Denso Corporation | 23338 |
6 |
| Northrop Grumman Systems Corporation | 2940 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
| C2cnt LLC | 79 |
5 |
| Other owners | 345 |