- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23D - Burners
- F23D 14/68 - Treating the combustion air or gas, e.g. by filtering or moistening
Patent holdings for IPC class F23D 14/68
Total number of patents in this class: 65
10-year publication summary
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5
|
4
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7
|
6
|
5
|
4
|
8
|
5
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1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lennox Industries Inc. | 1112 |
4 |
| JFE Steel Corporation | 6794 |
3 |
| LG Electronics Inc. | 72559 |
2 |
| University of Florida Research Foundation, Inc. | 3994 |
2 |
| Cambridge Engineering, Inc. | 16 |
2 |
| Chapin Manufacturing, Inc. | 156 |
2 |
| DAS Environmental Expert GmbH | 23 |
2 |
| Korea Institute of Industrial Technology | 1011 |
2 |
| Kyungdong Navien Co., Ltd. | 604 |
2 |
| Rheem Manufacturing Company | 975 |
2 |
| Technip France | 706 |
2 |
| Beijing Junfa Combustible Gas Technology Development Co., Ltd. | 2 |
2 |
| Carbonquest, Inc. | 35 |
2 |
| Toyota Motor Corporation | 31565 |
1 |
| Robert Bosch GmbH | 42505 |
1 |
| Caterpillar Inc. | 9509 |
1 |
| Air Liquide Deutschland G.m.b.H | 62 |
1 |
| Boehringer Ingelheim microParts GmbH | 76 |
1 |
| Chien-lung Chen | 2 |
1 |
| ClearSign Combustion Corporation | 111 |
1 |
| Other owners | 29 |