- All sections
- D - Textilespaper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbonsapparatus specially adapted for the manufacture of carbon filaments
- D01F 9/127 - Carbon filamentsApparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours
Patent holdings for IPC class D01F 9/127
Total number of patents in this class: 298
10-year publication summary
|
18
|
18
|
19
|
10
|
8
|
17
|
10
|
8
|
8
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Machinery, Ltd. | 1607 |
14 |
| Massachusetts Institute of Technology | 10285 |
11 |
| Sumitomo Electric Industries, Ltd. | 16331 |
10 |
| Showa Denko K.K. | 2061 |
10 |
| University of Tsukuba | 634 |
9 |
| Board of Regents, The University of Texas System | 6149 |
8 |
| Denka Company Limited | 2754 |
7 |
| Zeon Corporation | 4167 |
6 |
| LG Chem, Ltd. | 17956 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4013 |
5 |
| Tsinghua University | 6238 |
5 |
| The Furukawa Electric Co., Ltd. | 3693 |
5 |
| Resonac Corporation | 3624 |
5 |
| Dynetics, Inc. | 11 |
4 |
| Hazer Group Ltd | 20 |
4 |
| Hodogaya Chemical Co., Ltd. | 431 |
4 |
| Lintec of America, Inc. | 161 |
4 |
| National University Corporation Shizuoka University | 383 |
4 |
| Nissin Kogyo Co., Ltd. | 100 |
4 |
| University of Cincinnati | 933 |
4 |
| Other owners | 170 |