- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23L - Supplying air or non-combustible liquids or gases to combustion apparatus in general; valves or dampers specially adapted for controlling air supply or draught in combustion apparatus; inducing draught in combustion apparatus; tops for chimneys or ventilating shafts; terminals for flues
- F23L 13/02 - Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement
Patent holdings for IPC class F23L 13/02
Total number of patents in this class: 39
10-year publication summary
|
5
|
5
|
4
|
3
|
4
|
1
|
4
|
4
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Field Controls, LLC | 77 |
4 |
| Rinnai Corporation | 228 |
3 |
| Fire Chief Industries LLC | 7 |
3 |
| Andritz Inc. | 338 |
2 |
| Invensys Controls Australia Pty Ltd. | 5 |
2 |
| Kyungdong Navien Co., Ltd. | 594 |
2 |
| Lennox Industries Inc. | 1096 |
2 |
| Research Products Corporation | 169 |
2 |
| Ademco Inc. | 1399 |
2 |
| Skoberne GmbH | 6 |
2 |
| Sharp Corporation | 10194 |
1 |
| American Air Liquide, Inc. | 241 |
1 |
| Beckett Gas, Inc. | 45 |
1 |
| Doosan Lentjes GmbH | 47 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3146 |
1 |
| Gruppo Piazzetta S.P.A. | 25 |
1 |
| Microgen Engine Corporation Holding B.V. | 8 |
1 |
| Invicta Group | 23 |
1 |
| Emas Maki̇na Sanayi̇ Anoni̇m Şi̇rketi̇ | 11 |
1 |
| Firebird Heating Solutions Limited | 5 |
1 |
| Other owners | 5 |