• All sections
  • H - Electricity
  • H03K - Pulse technique
  • H03K 17/72 - Bipolar semiconductor devices with more than two PN junctions, e.g. thyristors, programmable unijunction transistors, or with more than three electrodes, e.g. silicon controlled switches, or with more than one electrode connected to the same conductivity region, e.g. unijunction transistors

Patent holdings for IPC class H03K 17/72

Total number of patents in this class: 85

10-year publication summary

5
13
3
4
4
3
6
8
6
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
ABB Schweiz AG
7085
9
NR Electric Co., Ltd.
328
4
NR Engineering Co., Ltd
290
4
NR Electric Power Electronics Co., Ltd.
58
4
Sony Corporation
30901
2
Infineon Technologies AG
8265
2
ams AG
767
2
Andritz Hydro Canada Inc.
15
2
National Research Council of Canada
1556
2
Voyomotive, LLC
11
2
Siemens AG
24346
1
LG Chem, Ltd.
17680
1
Eaton Corporation
1816
1
Robert Bosch GmbH
42861
1
Koninklijke Philips Electronics N.V.
9149
1
Dell Products L.P.
14875
1
STMicroelectronics S.r.l.
3598
1
STMicroelectronics (Tours) SAS
208
1
Macronix International Co., Ltd.
2547
1
Whirlpool Corporation
4440
1
Other owners 42