• 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: 87

10-year publication summary

14
3
5
4
3
7
9
6
4
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
ABB Schweiz AG
7607
9
NR Electric Co., Ltd.
346
4
NR Engineering Co., Ltd
305
4
NR Electric Power Electronics Co., Ltd.
63
4
Sony Corporation
30181
2
Infineon Technologies AG
8402
2
Tsinghua University
6211
2
ams AG
758
2
Andritz Hydro Canada Inc.
15
2
National Research Council of Canada
1551
2
Voyomotive, LLC
11
2
LG Chem, Ltd.
17921
1
Eaton Corporation
1804
1
Robert Bosch GmbH
44160
1
Koninklijke Philips Electronics N.V.
7455
1
Dell Products L.P.
17017
1
STMicroelectronics S.r.l.
3377
1
STMicroelectronics (Tours) SAS
212
1
Macronix International Co., Ltd.
2494
1
Whirlpool Corporation
4643
1
Other owners 43