- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
Patent holdings for IPC class F28F 1/24
Total number of patents in this class: 141
10-year publication summary
|
11
|
8
|
11
|
13
|
17
|
18
|
11
|
9
|
12
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
4 |
| Wieland-Werke AG | 315 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
3 |
| Hyundai Motor Company | 19021 |
3 |
| Uop LLC | 4083 |
3 |
| A-heat Allied Heat Exchange Technology AG | 8 |
3 |
| Eberspaecher Exhaust Technology GmbH & Co. KG | 62 |
3 |
| Hangzhou Sanhua Research Institute Co., Ltd. | 171 |
3 |
| NOVA Chemicals (International) S.A. | 717 |
3 |
| Oy Halton Group Ltd. | 147 |
3 |
| Rheem Manufacturing Company | 861 |
3 |
| Webasto AG | 417 |
3 |
| Danfoss A/S | 1259 |
3 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
3 |
| LG Electronics Inc. | 69257 |
2 |
| Ford Global Technologies, LLC | 19702 |
2 |
| Shell Oil Company | 2196 |
2 |
| Kia Motors Corporation | 7946 |
2 |
| Asia Vital Components Co., Ltd. | 413 |
2 |
| Clean Thermodynamic Energy Conversion Ltd | 10 |
2 |
| Other owners | 85 |