Inventor
Yefan Weng
Inventor
Guangdong, CN
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Dprimary
F04DNon-positive-displacement pumps46%
F24FAir-conditioning46%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general8%
PatentTitleYear
10,451,076Ventilating fan201910,240,614Ventilation fan20199,863,437'Ventilating fan'20189,541,297'Heating ventilator for bathroom'20179,347,464'Heating and ventilation fan for bathroom'20169,194,603'Heating and ventilating fan'20158,702,483'Assembly of pipe unit and pipe hood for ventilating fan'2014Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014–2019Patents assigned to PANASONIC CORP (7)· patent assignee history
2014–2019Patents assigned to PANASONIC ECO SYS GUANGDONG CO (7)· patent assignee history
2014–2017Patents assigned to WENG YEFAN (4)· patent assignee history
2014–2019Based in Guangdong, CN· patent location history
2015–2017Patents assigned to ISHIKAWA MAKOTO (3)· patent assignee history
2015–2017Patents assigned to TIAN LIANG (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PANASONIC CORP | 7 | 2014–2019 |
| PANASONIC ECO SYS GUANGDONG CO | 7 | 2014–2019 |
| WENG YEFANself | 4 | 2014–2017 |
| ISHIKAWA MAKOTO | 3 | 2015–2017 |
| TIAN LIANG | 3 | 2015–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Guangdong, CN | 7 | 2014–2019 |