- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact; heat storage plants or apparatus in general
- F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Patent holdings for IPC class F28D 7/00
Total number of patents in this class: 1131
10-year publication summary
|
86
|
102
|
152
|
135
|
118
|
80
|
69
|
87
|
63
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
43 |
| General Electric Company | 18133 |
35 |
| Valeo Systemes Thermiques | 2471 |
26 |
| Saudi Arabian Oil Company | 11322 |
21 |
| Mitsubishi Electric Corporation | 43934 |
16 |
| Daikin Industries, Ltd. | 9495 |
15 |
| Hanon Systems | 1632 |
14 |
| Air Products and Chemicals, Inc. | 1448 |
13 |
| Denso Corporation | 23338 |
11 |
| Linde Aktiengesellschaft | 1600 |
11 |
| Modine Manufacturing Company | 305 |
11 |
| Carrier Corporation | 4759 |
10 |
| Casale SA | 572 |
9 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
9 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
9 |
| LG Chem, Ltd. | 17205 |
8 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
8 |
| Fulton Group N.A., Inc. | 48 |
8 |
| MAHLE International GmbH | 2670 |
8 |
| Trane International Inc. | 1123 |
8 |
| Other owners | 838 |