Inventor
Joshua S. Zhu
Inventor
Torrance, CA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications12%
G06FElectric digital data processing8%
H02JElectric power networks8%
H04LTransmission of digital information, e.g. telegraphic communication8%
H04MTelephonic communication8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids8%
G08CTransmission systems for measured values, control or similar signals4%
PatentTitleYear
10,523,645Method and system for protecting user data using individualized keys to enable secure compartmentalized data backup/restore20198,452,603'Methods and systems for enhancement of device accessibility by language-translated voice output of user-interface items'20136,487,282'Apparatus and method for an inbound telemetry device to sense telephone line status'20026,347,135'Apparatus and method for powering a telephone-based inbound telemetry device'20025,850,127'EBL having a feedback circuit and a method for ensuring low temperature lamp operation at low dimming levels'19985,691,605'Electronic ballast with interface circuitry for multiple dimming inputs'19975,506,715'Lighting system having a remotely controlled electric lamp and an infrared remote controller with improved infrared filter'19965,107,184'Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases'19925,055,746'Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1992Patents assigned to ELECTRONIC BALLAST TECH (2)· patent assignee history
1991–2002Based in Torrance, CA, US· patent location history
1996–1998Patents assigned to PHILIPS ELECTRONICS NA (3)· patent assignee history
2002Patents assigned to FIRSTPOINT ENERGY CORP (1)· patent assignee history
2013Patents assigned to GOOGLE INC (1)· patent assignee history
2013Patents assigned to LIU MINDY (1)· patent assignee history
2013Based in Mountain View, CA, US· patent location history
2019Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIPS ELECTRONICS NA | 3 | 1996–1998 |
| ELECTRONIC BALLAST TECH | 2 | 1991–1992 |
| FIRSTPOINT ENERGY CORP | 1 | 2002 |
| GOOGLE INC | 1 | 2013 |
| LIU MINDY | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Torrance, California, US | 7 | 1991–2002 |
| San Jose, California, US | 1 | 2019 |
| Mountain View, California, US | 1 | 2013 |