- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/06 - Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
Patent holdings for IPC class F28F 1/06
Total number of patents in this class: 128
10-year publication summary
|
13
|
7
|
20
|
9
|
16
|
15
|
14
|
7
|
3
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
9 |
| General Electric Company | 18133 |
6 |
| The University of Tokyo | 3903 |
6 |
| AIC S.A. | 50 |
5 |
| Evapco, Inc. | 244 |
4 |
| Hanon Systems | 1632 |
4 |
| Rheem Manufacturing Company | 861 |
4 |
| Denso Corporation | 23338 |
3 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Intergas Heating Assets B.V. | 41 |
3 |
| MAHLE International GmbH | 2670 |
3 |
| Trane International Inc. | 1123 |
3 |
| UACJ Corporation | 631 |
3 |
| Valeo Systemes Thermiques | 2471 |
3 |
| Waki Factory Inc. | 9 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| DENSO Airs Corporation | 3 |
2 |
| Eurosets S.r.l. | 114 |
2 |
| Kyungdong Navien Co., Ltd. | 566 |
2 |
| Shoals Tubular Products, Inc. | 4 |
2 |
| Other owners | 56 |