- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 13/18 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflectingArrangements for modifying heat transfer, e.g. increasing, decreasing by surface treatment, e.g. polishing
Patent holdings for IPC class F28F 13/18
Total number of patents in this class: 780
10-year publication summary
|
67
|
81
|
66
|
70
|
81
|
53
|
72
|
53
|
50
|
29
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 46249 |
26 |
| Daikin Industries, Ltd. | 10031 |
22 |
| Wieland-Werke AG | 344 |
19 |
| Denso Corporation | 24372 |
14 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2870 |
14 |
| 3m Innovative Properties Company | 17820 |
13 |
| Massachusetts Institute of Technology | 10066 |
13 |
| The Board of Trustees of the Leland Stanford Junior University | 6433 |
12 |
| Carrier Corporation | 4292 |
12 |
| Toyota Motor Corporation | 32542 |
11 |
| FUJIFILM Corporation | 29458 |
11 |
| Nelumbo Inc. | 48 |
10 |
| UACJ Corporation | 701 |
10 |
| Hamilton Sundstrand Corporation | 4900 |
9 |
| Nippon Paint Surf Chemicals Co., Ltd. | 95 |
9 |
| The Regents of the University of Colorado, a body corporate | 2654 |
9 |
| Hyundai Motor Company | 22141 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
8 |
| Osaka Gas Co., Ltd. | 312 |
8 |
| Trane International Inc. | 1188 |
8 |
| Other owners | 534 |