Inventor
Po-Wen Ko
Inventor
Taoyuan, TW
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating40%
G06KGraphical data reading20%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes20%
G07CTime or attendance registers20%
PatentTitleYear
10,667,353Lighting system of alternate current light-emitting diodes202010,154,557Light-emitting diode driver device having a multi-stage driver module and method for driving the same20189,437,052'Vehicle after-sales service system'20167,991,434'Combi-sim card framework of electronic purse combining wireless transceiver of mobile device'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011Patents assigned to CHUNGHWA TELECOM CO LTD (1)· patent assignee history
2011Based in Yangmei Township, Taoyuan County, TW· patent location history
2016Patents assigned to POWER INT CHEMICAL & OIL CORP (1)· patent assignee history
2016Based in Tainan, TW· patent location history
2018–2020Patents assigned to JITBOUNDARY UNITED PRODUCTION INC (2)· patent assignee history
2018Based in Taichung, TW· patent location history
2020Based in Taoyuan, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JITBOUNDARY UNITED PRODUCTION INC | 2 | 2018–2020 |
| CHUNGHWA TELECOM CO LTD | 1 | 2011 |
| POWER INT CHEMICAL & OIL CORP | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taoyuan, TW | 1 | 2020 |
| Taichung, TW | 1 | 2018 |
| Tainan, TW | 1 | 2016 |
| Yangmei Township, Taoyuan County, TW | 1 | 2011 |