- 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 9/15 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues from coal pitch
Patent holdings for IPC class D01F 9/15
Total number of patents in this class: 79
10-year publication summary
|
6
|
4
|
10
|
6
|
16
|
7
|
4
|
2
|
4
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Holdings Intellectual Properties, LLC | 68 |
26 |
| Terrapower, LLC | 362 |
6 |
| Osaka Gas Chemicals Co., Ltd. | 147 |
4 |
| Unitika Ltd. | 447 |
4 |
| Ad'all Co., Ltd. | 10 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2841 |
3 |
| Kyushu University, National University Corporation | 1732 |
3 |
| ExxonMobil Technology and Engineering Company | 1381 |
3 |
| The Boeing Company | 20196 |
2 |
| China Petroleum & Chemical Corporation | 2169 |
2 |
| Reliance Industries Limited | 462 |
2 |
| Teijin Limited | 1290 |
2 |
| C2cnt LLC | 86 |
2 |
| Ramaco Carbon, LLC | 16 |
2 |
| LG Chem, Ltd. | 17956 |
1 |
| ExxonMobil Research And Engineering Company | 2398 |
1 |
| Industrial Technology Research Institute | 5198 |
1 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 293 |
1 |
| Cheorwon Plasma Research Institute | 19 |
1 |
| China University of Petroleum (Beijing) | 305 |
1 |
| Other owners | 8 |