Inventor
Fei Xu
Inventor
Osaka, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Cprimary
A47CChairs38%
G06CDigital computers in which all the computation is effected mechanically13%
G06FElectric digital data processing13%
H02JElectric power networks13%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems13%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%
PatentTitleYear
10,986,924Chair and seat support mechanism202110,918,211Chair and seat support mechanism202110,916,947System and method for direct current power transmission202110,881,208Chair and seat support mechanism20217,882,163'Electronic abacus and operation method of the electronic abacus'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011Patents assigned to XU FAWANG (1)· patent assignee history
2011Based in Shenzhen, Guangdong Province, CN· patent location history
2021Patents assigned to KOKUYO KK (3)· patent assignee history
2021Patents assigned to GE OIL & GAS UK LTD (1)· patent assignee history
2021Patents assigned to GEN ELECTRIC (1)· patent assignee history
2021Based in Osaka, JP· patent location history
2021Based in Shanghai, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOKUYO KK | 3 | 2021 |
| GE OIL & GAS UK LTD | 1 | 2021 |
| GEN ELECTRIC | 1 | 2021 |
| XU FAWANGself | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 3 | 2021 |
| Shanghai, CN | 1 | 2021 |
| Shenzhen, Guangdong Province, CN | 1 | 2011 |