- All sections
- H - Electricity
- H01B - Cablesconductorsinsulatorsselection of materials for their conductive, insulating or dielectric properties
- H01B 3/28 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
Patent holdings for IPC class H01B 3/28
Total number of patents in this class: 226
10-year publication summary
|
24
|
38
|
18
|
14
|
7
|
5
|
8
|
6
|
9
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16091 |
19 |
| Sumitomo Wiring Systems, Ltd. | 10777 |
12 |
| AutoNetworks Technologies, Ltd. | 6931 |
12 |
| Dow Global Technologies LLC | 10770 |
10 |
| Yazaki Corporation | 6963 |
9 |
| The Furukawa Electric Co., Ltd. | 3700 |
7 |
| Daikin Industries, Ltd. | 10384 |
6 |
| Daikin America, Inc. | 59 |
6 |
| LS Cable & System Ltd. | 401 |
6 |
| Hitachi Metals, Ltd. | 1921 |
5 |
| Shin-Etsu Chemical Co., Ltd. | 5948 |
5 |
| Schlumberger Technology Corporation | 11483 |
4 |
| General Cable Technologies Corporation | 383 |
4 |
| Sumitomo Electric Fine Polymer, Inc. | 203 |
4 |
| Hangzhou Xinglu Technologies Co., Ltd | 39 |
4 |
| Rohm and Haas Company | 2937 |
3 |
| Fujikura Ltd. | 3040 |
3 |
| Kyushu University, National University Corporation | 1694 |
3 |
| Prysmian S.p.A. | 909 |
3 |
| Sumitomo Riko Company Limited | 1114 |
3 |
| Other owners | 98 |