- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- 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: 136
10-year publication summary
|
20
|
9
|
16
|
15
|
15
|
7
|
4
|
7
|
4
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5013 |
9 |
| General Electric Company | 14047 |
6 |
| The University of Tokyo | 4416 |
6 |
| AIC S.A. | 53 |
5 |
| Hanon Systems | 2151 |
5 |
| Valeo Systemes Thermiques | 2825 |
5 |
| Evapco, Inc. | 321 |
4 |
| Rheem Manufacturing Company | 1040 |
4 |
| UACJ Corporation | 744 |
4 |
| Mitsubishi Electric Corporation | 48587 |
3 |
| MAHLE International GmbH | 2938 |
3 |
| Trane International Inc. | 1246 |
3 |
| Waki Factory Inc. | 9 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9295 |
2 |
| Denso Corporation | 26008 |
2 |
| Advanced Composite Structures, LLC | 67 |
2 |
| Intergas Heating Assets B.V. | 29 |
2 |
| Kyungdong Navien Co., Ltd. | 647 |
2 |
| Shoals Tubular Products, Inc. | 4 |
2 |
| Zypho, S.A. | 8 |
2 |
| Other owners | 62 |