- All sections
- H - Electricity
- H01C - Resistors
- H01C 7/02 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
Patent holdings for IPC class H01C 7/02
Total number of patents in this class: 664
10-year publication summary
|
62
|
48
|
48
|
48
|
36
|
34
|
30
|
53
|
36
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25893 |
94 |
| Littelfuse, Inc. | 791 |
57 |
| Polytronics Technology Corp. | 87 |
46 |
| Fuzetec Technology Co., Ltd. | 37 |
27 |
| TDK Electronics AG | 1014 |
26 |
| Watlow Electric Manufacturing Company | 577 |
22 |
| Hitachi Metals, Ltd. | 1823 |
18 |
| Tyco Electronics Japan G.K. | 159 |
17 |
| Littelfuse Electronics (Shanghai) Co., Ltd. | 23 |
13 |
| Epcos AG | 636 |
12 |
| Littelfuse Japan G.K. | 24 |
12 |
| TDK Corporation | 6960 |
10 |
| Mitsubishi Materials Corporation | 2481 |
10 |
| KOA Corporation | 426 |
8 |
| MAHLE International GmbH | 2919 |
8 |
| Shibaura Electronics Co., Ltd. | 116 |
7 |
| Taiyo Yuden Co., Ltd. | 2046 |
7 |
| Kyocera Corporation | 14445 |
6 |
| Bourns, Inc. | 174 |
6 |
| Conflux AB | 9 |
6 |
| Other owners | 252 |