- All sections
- B - Performing operationstransporting
- B29L - Indexing scheme associated with subclass , relating to particular articles
- B29L 31/18 - Heat-exchangers or parts thereof
Patent holdings for IPC class B29L 31/18
Total number of patents in this class: 96
10-year publication summary
|
5
|
12
|
9
|
10
|
12
|
12
|
3
|
5
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lennox Industries Inc. | 1120 |
11 |
| Hamilton Sundstrand Corporation | 5011 |
9 |
| Sekisui Chemical Co., Ltd. | 3639 |
5 |
| Philip Morris Products S.A. | 8291 |
4 |
| Henkel AG & Co. KGaA | 10777 |
3 |
| MAHLE International GmbH | 2921 |
3 |
| Zehnder Group International AG | 397 |
3 |
| International Business Machines Corporation | 62805 |
2 |
| Terumo Kabushiki Kaisha | 5874 |
2 |
| TI Automotive Technology Center GmbH | 74 |
2 |
| UChicago Argonne, LLC | 958 |
2 |
| Westinghouse Electric Company LLC | 1200 |
2 |
| Axial Fans Int S.r.l. | 4 |
2 |
| Sogefi Air & Cooling USA, Inc. | 13 |
2 |
| General Electric Company | 13982 |
1 |
| LG Chem, Ltd. | 17970 |
1 |
| Xerox Corporation | 4379 |
1 |
| GM Global Technology Operations LLC | 16232 |
1 |
| Denso Corporation | 25746 |
1 |
| Applied Materials, Inc. | 20579 |
1 |
| Other owners | 38 |