Inventor
Liren Du
Inventor
San Jose, CA, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus38%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein14%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
B60LPropulsion of electrically-propelled vehicles5%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light5%
G06FElectric digital data processing5%
G06TImage data processing or generation, in general5%
G06VImage or video recognition or understanding5%
Y02TClimate change mitigation technologies related to transportation5%
PatentTitleYear
11,080,894Skin color detection method, skin color detection apparatus, and storage medium202110,953,762Pilot signal detection and indication unit and electric vehicle charging system including the same20217,585,546'Surface passivation and sealing of micro-optics devices for improved performance in harsh environments'20097,173,762'Optical isolator with reduced insertion loss and minimized polarization mode dispersion'20077,043,101'Integrated optical pump module'20067,031,574'Plug-in module for providing bi-directional data transmission'20067,023,618'Dual-stage optical isolator minimized polarization mode dispersion and simplified fabrication process'20067,010,193'Adjustable optical signal collimator'20066,987,905'Simplified gain flattening and tap device'20066,973,224'Multi-channel polarization beam combiner/splitter'20056,919,989'Integrated optical isolator and polarization beam combiner'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2009Patents assigned to FINISAR CORP (9)· patent assignee history
2005–2009Based in San Jose, CA, US· patent location history
2006–2007Based in Sunnyvale, CA, US· patent location history
2021Patents assigned to BIGO TECH PTE LTD (1)· patent assignee history
2021Patents assigned to EATON INTELLIGENT POWER LTD (1)· patent assignee history
2021Patents assigned to GUANGZHOU BAIGUOYUAN INF TECH CO LTD (1)· patent assignee history
2021Based in Guangzhou, CN· 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 |
|---|---|---|
| FINISAR CORP | 9 | 2005–2009 |
| BIGO TECH PTE LTD | 1 | 2021 |
| EATON INTELLIGENT POWER LTD | 1 | 2021 |
| GUANGZHOU BAIGUOYUAN INF TECH CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 7 | 2005–2009 |
| Sunnyvale, California, US | 2 | 2006–2007 |
| Guangzhou, CN | 1 | 2021 |
| Shanghai, CN | 1 | 2021 |