- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
Patent holdings for IPC class F28F 1/08
Total number of patents in this class: 109
10-year publication summary
|
3
|
9
|
20
|
11
|
14
|
8
|
10
|
5
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hanon Systems | 1632 |
5 |
| Valeo Systemes Thermiques | 2471 |
5 |
| Uop LLC | 4083 |
4 |
| Hamilton Sundstrand Corporation | 4525 |
3 |
| AIC S.A. | 50 |
3 |
| Intergas Heating Assets B.V. | 41 |
3 |
| The University of Tokyo | 3903 |
3 |
| Senior UK Limited | 11 |
3 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 297 |
2 |
| China Petroleum & Chemical Corporation | 1623 |
2 |
| Hieta Technologies Limited | 27 |
2 |
| HS R & a Co., Ltd. | 27 |
2 |
| Industrie ILPEA S.p.A. | 34 |
2 |
| Rygan Corp. | 7 |
2 |
| Waki Factory Inc. | 9 |
2 |
| Xinchang County Sitong Electrical Co., Ltd. | 5 |
2 |
| ContiTech Fluid Korea Ltd. | 5 |
2 |
| Panotec Co., Ltd. | 2 |
2 |
| Tennessee Propulsion Products, LLC | 30 |
2 |
| LG Electronics Inc. | 69257 |
1 |
| Other owners | 57 |