- 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: 581
10-year publication summary
|
42
|
55
|
50
|
52
|
56
|
61
|
61
|
51
|
50
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Beijing Institute of Nanoenergy and Nanosystems | 67 |
38 |
| Samsung Electronics Co., Ltd. | 146092 |
29 |
| Georgia Tech Research Corporation | 2733 |
22 |
| Zhejiang University | 3143 |
21 |
| Newnagy (tangshan), LLC | 37 |
21 |
| Research & Business Foundation Sungkyunkwan University | 1935 |
19 |
| Koninklijke Philips N.V. | 24786 |
18 |
| Boe Technology Group Co., Ltd. | 41139 |
18 |
| Nazhiyuan Technology (tangshan), LLC | 36 |
16 |
| National University of Singapore | 2449 |
13 |
| Ricoh Company, Ltd. | 13247 |
9 |
| Soochow University | 1736 |
9 |
| City University of Hong Kong | 841 |
8 |
| Peking University | 1308 |
8 |
| Nanyang Technological University | 2006 |
7 |
| Korea Electronics Technology Institute | 1662 |
6 |
| Saudi Arabian Oil Company | 13155 |
6 |
| Shenzhen Institutes of Advanced Technology | 1488 |
6 |
| Guangdong Ocean University | 165 |
6 |
| Purdue Research Foundation | 3612 |
5 |
| Other owners | 296 |