- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28G - Cleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes of boilers
- F28G 1/04 - Non-rotary, e.g. reciprocated, appliances having articulated tools, e.g. assembled in chain manner
Patent holdings for IPC class F28G 1/04
Total number of patents in this class: 9
10-year publication summary
|
3
|
1
|
1
|
4
|
1
|
0
|
1
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stoneage, Inc. | 285 |
3 |
| Crossford International, LLC | 92 |
2 |
| General Electric Company | 14021 |
1 |
| Teknologian Tutkimuskeskus VTT Oy | 600 |
1 |
| Thomas Engineering Solutions & Consulting, LLC | 13 |
1 |
| 1863815 Ontario Limited | 1 |
1 |
| Other owners | 0 |