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Patent Assignment Assignor Details
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Assignor Name : WANG, KO-CHENG
Total Assignments: 9
Assignment: 1
Reel/Frame:015396/0907   Pages: 4
Recorded: 05/21/2004
Attorney Dkt #:04131.0169
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAI, LIANG-PIN
Exec Dt:
05/11/2004
2
HWANG, KENT
Exec Dt:
05/11/2004
3
HUANG, JIAN-RONG
Exec Dt:
05/11/2004
4
LIU, KUO-PING
Exec Dt:
05/11/2004
5
FAN, CHENG-HSUAN
Exec Dt:
05/11/2004
6
WANG, KO-CHENG
Exec Dt:
05/11/2004
7
LIAO, YU-FAN
Exec Dt:
05/11/2004
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI-YUAN ST., CHU-PEI CITY
HSIN-CHU HSIEN, TAIWAN
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6969980
US20050258813
10850164
Correspondence name and address
FINNEGAN, HENDERSON, FARABOW, GARRETT &
LLP
1300 I STREET, NW
WASHINGTON, DC 20005
Assignment: 2
Reel/Frame:018086/0025   Pages: 2
Recorded: 08/09/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, KO-CHENG
Exec Dt:
07/27/2006
2
TAI, LIANG-PIN
Exec Dt:
07/27/2006
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUAN STREET, CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7576588
US20070046358
11498240
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 3
Reel/Frame:019728/0779   Pages: 2
Recorded: 08/21/2007
Attorney Dkt #:MR2707-218
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, KUO-PING
Exec Dt:
07/27/2007
2
WANG, KO-CHENG
Exec Dt:
07/27/2007
3
TAI, LIANG-PIN
Exec Dt:
07/27/2007
4
CHENG, CHUNG-SHENG
Exec Dt:
07/27/2007
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7834606
US20080030181
11882485
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 4
Reel/Frame:019942/0854   Pages: 2
Recorded: 10/10/2007
Attorney Dkt #:MR2707-226
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, KO-CHENG
Exec Dt:
10/04/2007
2
TAI, LIANG-PIN
Exec Dt:
10/04/2007
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090039856
11905196
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 5
Reel/Frame:022489/0466   Pages: 2
Recorded: 03/24/2009
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
WANG, KO-CHENG
Exec Dt:
03/11/2009
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8222876
US20100072963
12383402
Correspondence name and address
RANDY W. TUNG
TUNG & ASSOSCIATES
838 W. LONG LAKE ROAD
SUITE 120
BLOOMFIELD HILLS, MI 48302
Assignment: 6
Reel/Frame:023434/0342   Pages: 2
Recorded: 10/28/2009
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, CHIAO CHIEH
Exec Dt:
10/12/2009
2
WANG, KO-CHENG
Exec Dt:
10/12/2009
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8294443
US20100066331
12585474
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 7
Reel/Frame:024284/0162   Pages: 2
Recorded: 04/23/2010
Attorney Dkt #:MR2707-349
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, KO-CHENG
Exec Dt:
04/15/2010
2
LIU, KUO-PING
Exec Dt:
04/15/2010
3
TSENG, CHIH-WEI
Exec Dt:
04/20/2010
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8525505
US20100283441
12766246
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 8
Reel/Frame:027761/0770   Pages: 2
Recorded: 02/24/2012
Attorney Dkt #:#: 92,000-263 (RH-1155)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIAO, CHIA-WEI
Exec Dt:
02/23/2012
2
WANG, KO-CHENG
Exec Dt:
02/16/2012
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8896319
US20130221978
13404928
Correspondence name and address
TUNG & ASSOCIATES / RANDY W. TUNG, ESQ.
838 W. LONG LAKE RD.
SUITE 120
BLOOMFIELD HILLS, MI 48302
Assignment: 9
Reel/Frame:035812/0839   Pages: 2
Recorded: 06/10/2015
Attorney Dkt #:92,000-433 (RH-1300)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
WANG, KO-CHENG
Exec Dt:
05/29/2015
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
14F, NO.8, TAIYUAN 1ST STREET
ZHUBEI CITY, HSINCHU, TAIWAN
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9489001
US20150362937
14735176
Correspondence name and address
TUNG & ASSOCIATES / RANDY W. TUNG, ESQ.
838 W. LONG LAKE RD.
SUITE 120
BLOOMFIELD HILLS, MI 48302

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