Inventor
Herman Cheung
Inventor
Cupertino, CA, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Kprimary
H03KPulse technique31%
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 systems15%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications15%
C12NMicroorganisms or enzymes8%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
G06FElectric digital data processing8%
H03MCoding8%
A61KPreparations for medical, dental or toiletry purposes4%
H05KPrinted circuits4%
PatentTitleYear
10,396,800Compensation memory (CM) for power application201910,320,391Pulse-width modulation (PWM) control loop for power application201910,312,911Programmable analog and digital input/output for power application201910,200,056Method and apparatus for analog to digital error conversion with multiple symmetric transfer functions201910,141,937Pulse-width modulation (PWM) control loop for power application201810,135,447Compensation memory (CM) for power application201810,106,773Isolation and use of pluripotent stem cell population from adult neural crest-derived tissues201810,003,338Programmable analog and digital input/output for power application20189,998,135Method and apparatus for analog to digital error conversion with multiple symmetric transfer functions20188,153,436'Assays for disease-associated crystals in biological samples'20124,757,017'In vitro cell culture system'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988Patents assigned to MCW RES FOUND INC (1)· patent assignee history
1988Based in Waukesha, WI, US· patent location history
2012–2018Patents assigned to UNIV MIAMI (2)· patent assignee history
2012Patents assigned to CHEUNG HERMAN S (1)· patent assignee history
2012Patents assigned to US DEPT VETERANS AFFAIRS (1)· patent assignee history
2012–2018Based in Miami, FL, US· patent location history
2018–2019Patents assigned to ANDAPT INC (8)· patent assignee history
2018–2019Based in Cupertino, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ANDAPT INC | 8 | 2018–2019 |
| UNIV MIAMI | 2 | 2012–2018 |
| CHEUNG HERMAN Sself | 1 | 2012 |
| MCW RES FOUND INC | 1 | 1988 |
| US DEPT VETERANS AFFAIRS | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cupertino, California, US | 8 | 2018–2019 |
| Miami, Florida, US | 2 | 2012–2018 |
| Waukesha, WI, US | 1 | 1988 |