Patent holdings for IPC class F03B 13/22

Total number of patents in this class: 252

10-year publication summary

23
34
22
23
21
33
30
35
26
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Lone Gull Holdings, Ltd.
144
45
KYB Corporation
1410
7
Robert Bosch GmbH
43500
5
Jospa Limited
9
5
Geps Techno
5
4
Dalian University of Technology
1571
3
Geps Innov
5
3
Ingine, Inc.
36
3
Natural Power Concepts, Inc.
16
3
The University of Tokyo
4318
3
Hyundai Motor Company
23540
2
Microsoft Technology Licensing, LLC
54210
2
Aw-energy Oy
43
2
Columbia Power Technologies, Inc.
27
2
Elemental Energy Technologies Limited
3
2
FOI Group, LLC
16
2
Fourivers Power Engineering Pty Ltd
2
2
Jupiter Hydro Inc.
4
2
Korea Institute of Ocean Science & Technology
433
2
Michigan Technological University
159
2
Other owners 151