- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23J - Removal or treatment of combustion products or combustion residues; flues
- F23J 11/12 - Smoke conduit systems for factories or large buildings
Patent holdings for IPC class F23J 11/12
Total number of patents in this class: 17
10-year publication summary
|
0
|
1
|
0
|
3
|
1
|
2
|
0
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| D'herville, Florence Anne | 2 |
2 |
| Hatch Ltd. | 219 |
2 |
| Noritz Corporation | 255 |
2 |
| Hadek Protective Systems b.v. | 8 |
1 |
| Johnson, Christine Marie | 1 |
1 |
| Moore, Nicholas Peter | 1 |
1 |
| RM Manifold Group, Inc. | 7 |
1 |
| BD Energy Systems, LLC | 13 |
1 |
| exodraft a/s | 1 |
1 |
| Easy International SRL | 4 |
1 |
| INTER BONOS d.o.o. | 1 |
1 |
| Technaflon AG | 1 |
1 |
| Shell USA, Inc. | 1074 |
1 |
| Pipeeksperten AS | 1 |
1 |
| Other owners | 0 |