- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Patent holdings for IPC class F28F 27/00
Total number of patents in this class: 1073
10-year publication summary
100
|
88
|
112
|
102
|
85
|
73
|
67
|
63
|
75
|
34
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hamilton Sundstrand Corporation | 4836 |
17 |
Baltimore Aircoil Company, Inc. | 174 |
16 |
Alfa Laval Corporate AB | 1310 |
14 |
Dana Canada Corporation | 273 |
12 |
Prime Datum, Inc. | 22 |
11 |
Mitsubishi Heavy Industries, Ltd. | 8664 |
10 |
Toyota Motor Corporation | 31693 |
9 |
The Boeing Company | 20031 |
9 |
Denso Corporation | 24190 |
9 |
Mitsubishi Electric Corporation | 45899 |
9 |
Google LLC | 41934 |
9 |
Prime Datum Development Company, LLC | 26 |
9 |
Trane International Inc. | 1177 |
9 |
International Business Machines Corporation | 61144 |
8 |
Belimo Holding AG | 269 |
8 |
Coolit Systems Inc. | 54 |
8 |
Siemens AG | 24552 |
7 |
Hyundai Motor Company | 21795 |
7 |
Dell Products L.P. | 14160 |
7 |
Uop LLC | 4240 |
7 |
Other owners | 878 |