- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contactheat 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: 1197
10-year publication summary
|
152
|
136
|
119
|
81
|
73
|
97
|
64
|
59
|
45
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5013 |
48 |
| General Electric Company | 14036 |
33 |
| Valeo Systemes Thermiques | 2821 |
28 |
| Saudi Arabian Oil Company | 14446 |
22 |
| Mitsubishi Electric Corporation | 48546 |
17 |
| Daikin Industries, Ltd. | 10546 |
14 |
| Hanon Systems | 2147 |
14 |
| Denso Corporation | 25936 |
12 |
| Air Products and Chemicals, Inc. | 1475 |
12 |
| MAHLE International GmbH | 2934 |
12 |
| Modine Manufacturing Company | 301 |
10 |
| Rtx Corporation | 10264 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9279 |
9 |
| Fulton Group N.A., Inc. | 55 |
9 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4154 |
9 |
| Linde Aktiengesellschaft | 1410 |
9 |
| Shell Internationale Research Maatschappij B.V. | 3359 |
8 |
| Carrier Corporation | 3960 |
8 |
| Trane International Inc. | 1246 |
8 |
| Unison Industries, LLC | 220 |
8 |
| Other owners | 897 |