- 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: 808
10-year publication summary
|
81
|
66
|
73
|
81
|
54
|
77
|
55
|
51
|
40
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47971 |
26 |
| Daikin Industries, Ltd. | 10478 |
22 |
| Wieland-Werke AG | 353 |
20 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2831 |
15 |
| Denso Corporation | 25513 |
14 |
| Massachusetts Institute of Technology | 10239 |
14 |
| 3m Innovative Properties Company | 17488 |
13 |
| The Board of Trustees of the Leland Stanford Junior University | 6644 |
12 |
| Carrier Corporation | 3958 |
12 |
| Toyota Motor Corporation | 35680 |
11 |
| FUJIFILM Corporation | 30512 |
11 |
| Nelumbo Inc. | 51 |
11 |
| Hyundai Motor Company | 24602 |
10 |
| UACJ Corporation | 733 |
10 |
| The Regents of the University of California | 20720 |
9 |
| Hamilton Sundstrand Corporation | 5016 |
9 |
| Nippon Paint Surf Chemicals Co., Ltd. | 99 |
9 |
| Osaka Gas Co., Ltd. | 314 |
9 |
| The Regents of the University of Colorado, a body corporate | 2798 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
8 |
| Other owners | 554 |