Inventor
Leo Liu
Inventor
Cary, NC, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication25%
H04MTelephonic communication25%
G06FElectric digital data processing13%
H10DInorganic electric semiconductor devices13%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%
H01LSemiconductor devices6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
8,884,374'CMOS device and fabrication method'20148,741,708'Transistor and method for forming the same'20147,761,467'Method and a system for certificate revocation list consolidation and access'20107,568,032'Method of balancing load among mirror servers'20097,356,615'Pluggable service delivery platform'20087,013,007'Computer telephony power supply method and apparatus'20066,757,706'Method and apparatus for providing responses for requests of off-line clients'20046,742,018'System and method for storing and retrieving data by keywords converted into divided long integers'20046,532,230'Mixed-media communication apparatus and method'20036,493,439'Analog caller identification transmission method and apparatus'20026,292,549'Analog caller identification transmission method and apparatus'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2006Patents assigned to ALTIGEN COMMUNICATIONS INC (4)· patent assignee history
2001–2006Based in Palo Alto, CA, US· patent location history
2004–2010Patents assigned to IBM (5)· patent assignee history
2004–2010Based in Cary, NC, US· patent location history
2014Patents assigned to SEMICONDUCTOR MFG INT CORP (2)· patent assignee history
2014Patents assigned to HE ALLAN (1)· patent assignee history
2014Patents assigned to LIU LEO (1)· patent assignee history
2014Based in Shanghai, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 5 | 2004–2010 |
| ALTIGEN COMMUNICATIONS INC | 4 | 2001–2006 |
| SEMICONDUCTOR MFG INT CORP | 2 | 2014 |
| HE ALLAN | 1 | 2014 |
| LIU LEOself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cary, NC, US | 5 | 2004–2010 |
| Palo Alto, California, US | 4 | 2001–2006 |
| Shanghai, CN | 2 | 2014 |