- All sections
- H - Electricity
- H02N - Electric machines not otherwise provided for
- H02N 1/04 - Friction generators
Patent holdings for IPC class H02N 1/04
Total number of patents in this class: 603
10-year publication summary
|
55
|
50
|
52
|
55
|
61
|
61
|
51
|
50
|
38
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Beijing Institute of Nanoenergy and Nanosystems | 68 |
38 |
| Samsung Electronics Co., Ltd. | 151017 |
29 |
| Georgia Tech Research Corporation | 2856 |
22 |
| Zhejiang University | 3315 |
22 |
| Newnagy (tangshan), LLC | 37 |
21 |
| Research & Business Foundation Sungkyunkwan University | 2056 |
19 |
| Koninklijke Philips N.V. | 25323 |
18 |
| Boe Technology Group Co., Ltd. | 42421 |
18 |
| Nazhiyuan Technology (tangshan), LLC | 36 |
16 |
| National University of Singapore | 2533 |
14 |
| City University of Hong Kong | 899 |
10 |
| Ricoh Company, Ltd. | 13348 |
9 |
| Soochow University | 1756 |
9 |
| Peking University | 1382 |
8 |
| Guangdong Ocean University | 175 |
8 |
| Nanyang Technological University | 2116 |
7 |
| Korea Electronics Technology Institute | 1679 |
6 |
| Korea University of Technology and Education Industry-University Cooperation Foundation | 159 |
6 |
| Saudi Arabian Oil Company | 13814 |
6 |
| Shenzhen Institutes of Advanced Technology | 1509 |
6 |
| Other owners | 311 |