Patent holdings for IPC class F01C 1/356

Total number of patents in this class: 68

10-year publication summary

14
8
6
3
4
4
5
1
4
0
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Panasonic Corporation
20786
16
Daikin Industries, Ltd.
9495
5
Greystone Technologies Pty Ltd
10
4
LiquidPiston, Inc.
41
4
Matsushita Electric Industrial Co., Ltd.
4724
3
WB Development Company, LLC
17
3
Circle Engine Co
2
2
Robert Bosch GmbH
40953
1
The United States of America as represented by the Secretary of the Navy
2734
1
Weatherford Technology Holdings, LLC
2135
1
Beijing Rostar Technology Co. Ltd
15
1
Customachinery Inc.
4
1
Fluid Control Products, Inc.
4
1
International Engine Intellectual Property Company, LLC
543
1
Koch, Randy
1
1
Liftra ApS
6
1
Mair's - Drehscheibenmotor, Inc.
1
1
Map Energy SpA
1
1
Quantex Patents Limited
11
1
REGI U.S., Inc.
10
1
Other owners 18