Patent holdings for IPC class H01H 31/12

Total number of patents in this class: 123

10-year publication summary

11
10
4
1
7
5
9
9
9
5
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Hubbell Incorporated
3233
8
Wohner GmbH & Co. KG Elektrotechnische Systeme
35
6
ABB Schweiz AG
6887
4
Goodwell Electric Corp.
8
4
Taiwan Mask Corporation
9
4
Mitsubishi Electric Corporation
45811
3
Yazaki Corporation
6613
3
EFEN GmbH
19
3
Electric Power Research Institute, Inc.
212
3
Hitachi Energy Ltd.
2180
3
The Boeing Company
20013
2
Caterpillar Inc.
9472
2
Delta Electronics, Inc.
2583
2
ABB Research Ltd.
894
2
Bender GmbH & Co. KG
121
2
Eco Electrical Systems
16
2
S & C Electric Co.
290
2
Schneider Electric Canada Inc.
8
2
STMicroelectronics International N.V.
3056
2
Ema Electromechanics, Inc.
15
2
Other owners 62