Patent holdings for IPC class F02M 21/06

Total number of patents in this class: 220

10-year publication summary

27
16
30
24
7
15
8
13
9
13
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Hyundai Heavy Industries Co., Ltd.
274
12
HPDI Technology Limited Partnership
175
10
Robert Bosch GmbH
42861
8
Carrier Corporation
4303
7
Wartsila Finland Oy
735
7
Hanwha Ocean Co., Ltd.
127
7
Caterpillar Inc.
9659
6
Dynamic Fuel Systems, Inc.
9
6
Gaztransport et Technigaz
592
6
Volvo Truck Corporation
3487
6
Westport Power Inc.
122
6
Chart Inc.
137
5
Daewoo Shipbuilding & Marine Engineering Co., Ltd.
231
4
Keihin Corporation
181
4
Nippon Soken, Inc.
305
4
Progress Rail Locomotive Inc.
321
4
Toyota Motor Corporation
33077
3
Continental Automotive GmbH
4759
3
Alfa Laval Corhex Ltd
3
3
Samsung Heavy Ind. Co., Ltd.
239
3
Other owners 106