Patent holdings for IPC class F04C 28/28

Total number of patents in this class: 379

10-year publication summary

30
31
40
30
39
29
35
21
23
20
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Copeland LP
702
23
Mitsubishi Electric Corporation
46618
21
Hitachi Industrial Equipment Systems Co., Ltd.
1467
20
Atlas Copco Airpower, naamloze vennootschap
1035
18
Daikin Industries, Ltd.
10112
16
LG Electronics Inc.
73714
14
Edwards Limited
788
12
Leybold GmbH
294
10
Toyota Industries Corporation
1145
9
Hanon Systems
1992
8
Pfeiffer Vacuum
167
8
Bitzer Kuehlmaschinenbau GmbH
154
7
Emerson Climate Technologies, Inc.
301
6
Trane International Inc.
1196
6
Carrier Corporation
4303
5
GREE Electric Appliances, Inc. of Zhuhai
3255
5
Lennox Industries Inc.
1131
5
Sanden Corporation
964
5
Samsung Electronics Co., Ltd.
148077
4
Agilent Technologies, Inc.
2630
4
Other owners 173