- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28G - Cleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes of boilers
- F28G 1/12 - Fluid-propelled scrapers, bullets, or like solid bodies
Patent holdings for IPC class F28G 1/12
Total number of patents in this class: 121
10-year publication summary
8
|
10
|
10
|
13
|
9
|
7
|
13
|
9
|
2
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Chevron Phillips Chemical Company LP | 1779 |
6 |
HVS Engineering Pte Ltd | 5 |
5 |
Shenzhen Handfos Fluid Mechanical & Electrical Equipment Co., Ltd | 4 |
4 |
Back Porch Holdings Inc. | 3 |
3 |
Crossford International, LLC | 87 |
3 |
Fiberbuilt Manufacturing Inc. | 22 |
3 |
Geesco Co., Ltd. | 17 |
3 |
No-des, Inc. | 13 |
3 |
Tube Tech International Limited | 14 |
3 |
Hydroball Technics Holdings Pte Ltd | 3 |
3 |
Glasspoint, Inc. | 24 |
3 |
The Boeing Company | 19843 |
2 |
ConocoPhillips Company | 1657 |
2 |
C.q.m. Ltd. | 7 |
2 |
Envirologics Engineering Inc. | 22 |
2 |
Hydroactive Veloball International | 3 |
2 |
Jeongwoo Industrial Machine Co., Ltd. | 2 |
2 |
The Kim Family Trust, a California trust, comprising Jeanne M. Kim, a U.S. citizen, The | 12 |
2 |
Korea Institute of Energy Research | 803 |
2 |
Saudi Arabian Oil Company | 11322 |
2 |
Other owners | 64 |