- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 13/04 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
Patent holdings for IPC class F28F 13/04
Total number of patents in this class: 54
10-year publication summary
4
|
6
|
6
|
2
|
6
|
8
|
7
|
3
|
2
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nelumbo Inc. | 40 |
4 |
Massachusetts Institute of Technology | 9795 |
3 |
The Regents of the University of California | 18943 |
2 |
Hitachi, Ltd. | 16452 |
2 |
Daikin Industries, Ltd. | 9495 |
2 |
Hamilton Sundstrand Corporation | 4525 |
2 |
Carrier Corporation | 4759 |
2 |
The Board of Trustees of the University of Illinois | 2623 |
2 |
Mayekawa Mfg. Co., Ltd. | 327 |
2 |
North China Electric Power University | 142 |
2 |
Siemens AG | 24990 |
1 |
LG Electronics Inc. | 69257 |
1 |
Toyota Motor Corporation | 28582 |
1 |
Panasonic Corporation | 20786 |
1 |
Mitsubishi Electric Corporation | 43934 |
1 |
Showa Denko K.K. | 2539 |
1 |
Henkel AG & Co. KGaA | 10129 |
1 |
The United States of America as represented by the Secretary of the Army | 1195 |
1 |
ABB Schweiz AG | 6321 |
1 |
Alfa Laval Corporate AB | 1265 |
1 |
Other owners | 21 |