- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 1012
10-year publication summary
|
105
|
100
|
88
|
112
|
102
|
84
|
69
|
66
|
58
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
17 |
| Alfa Laval Corporate AB | 1265 |
14 |
| Baltimore Aircoil Company, Inc. | 156 |
13 |
| Dana Canada Corporation | 284 |
12 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
11 |
| Mitsubishi Electric Corporation | 43934 |
11 |
| Prime Datum, Inc. | 22 |
11 |
| International Business Machines Corporation | 60644 |
9 |
| The Boeing Company | 19843 |
9 |
| Denso Corporation | 23338 |
9 |
| Google LLC | 38759 |
9 |
| Prime Datum Development Company, LLC | 24 |
9 |
| Trane International Inc. | 1123 |
9 |
| Toyota Motor Corporation | 28582 |
8 |
| Carrier Corporation | 4759 |
8 |
| Belimo Holding AG | 235 |
8 |
| Hyundai Motor Company | 19021 |
7 |
| Uop LLC | 4083 |
7 |
| Coolit Systems Inc. | 43 |
7 |
| Energy Environmental Corporation | 13 |
7 |
| Other owners | 817 |