- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23N - Regulating or controlling combustion
- F23N 3/00 - Regulating air supply or draught
Patent holdings for IPC class F23N 3/00
Total number of patents in this class: 250
10-year publication summary
14
|
20
|
24
|
19
|
14
|
21
|
21
|
18
|
16
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Siemens AG | 24990 |
5 |
8 Rivers Capital, LLC | 224 |
5 |
Ademco Inc. | 1374 |
5 |
Spider Grills, LLC | 16 |
5 |
General Electric Technology GmbH | 1657 |
4 |
Kyungdong Navien Co., Ltd. | 566 |
4 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
4 |
Regal Beloit America, Inc. | 939 |
4 |
Truma Gerätetechnik GmbH & Co. KG | 283 |
4 |
Improbed AB | 22 |
4 |
A. o. Smith Corporation | 204 |
3 |
Degremont | 103 |
3 |
ExxonMobil Upstream Research Company | 2525 |
3 |
Field Controls, LLC | 80 |
3 |
Bosch Termotecnologia S.A. | 25 |
3 |
Cowles Operating Company | 20 |
3 |
OnPoint Technologies, LLC | 56 |
3 |
Mitsubishi Power, Ltd. | 1680 |
3 |
Halliburton Energy Services, Inc. | 20165 |
2 |
Toyota Motor Corporation | 28582 |
2 |
Other owners | 178 |