- 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: 300
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. | 1595 |
14 |
| Massachusetts Institute of Technology | 10251 |
11 |
| Sumitomo Electric Industries, Ltd. | 16331 |
10 |
| Showa Denko K.K. | 2069 |
10 |
| University of Tsukuba | 631 |
9 |
| Board of Regents, The University of Texas System | 6107 |
8 |
| Denka Company Limited | 2720 |
7 |
| Zeon Corporation | 4147 |
6 |
| LG Chem, Ltd. | 17921 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4022 |
5 |
| Tsinghua University | 6211 |
5 |
| The Furukawa Electric Co., Ltd. | 3694 |
5 |
| Resonac Corporation | 3530 |
5 |
| Dynetics, Inc. | 11 |
4 |
| Hazer Group Ltd | 19 |
4 |
| Hodogaya Chemical Co., Ltd. | 431 |
4 |
| Lintec of America, Inc. | 159 |
4 |
| National University Corporation Shizuoka University | 383 |
4 |
| Nissin Kogyo Co., Ltd. | 100 |
4 |
| University of Cincinnati | 926 |
4 |
| Other owners | 172 |