- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/26 - 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 the means being integral with the element
Patent holdings for IPC class F28F 1/26
Total number of patents in this class: 70
10-year publication summary
|
6
|
8
|
11
|
10
|
10
|
8
|
1
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10141 |
9 |
| General Electric Company | 13938 |
6 |
| Safran Aircraft Engines | 6741 |
4 |
| Wieland-Werke AG | 358 |
4 |
| Nippon Light Metal Company, Ltd. | 685 |
3 |
| LG Electronics Inc. | 75910 |
2 |
| Carrier Corporation | 3950 |
2 |
| Asia Vital Components Co., Ltd. | 436 |
2 |
| Evapco, Inc. | 311 |
2 |
| NOVA Chemicals (International) S.A. | 800 |
2 |
| Rheem Manufacturing Company | 1026 |
2 |
| Clada S.r.l. | 20 |
2 |
| Honeywell International Inc. | 12770 |
1 |
| OSRAM GmbH | 2191 |
1 |
| Brazeway, Inc. | 26 |
1 |
| Cooler Master Co., Ltd. | 269 |
1 |
| Cosmogas S.r.l. | 9 |
1 |
| Forum US, Inc. | 349 |
1 |
| Hamon Research-Cottrell, Inc. | 1 |
1 |
| Helmholtz-Zentrum Dresden-Rossendorf e.V. | 140 |
1 |
| Other owners | 22 |