skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : FAN, CHENG-HSUAN
Total Assignments: 18
Assignment: 1
Reel/Frame:012932/0902   Pages: 4
Recorded: 05/24/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, JING-MENG
Exec Dt:
02/22/2002
2
HWANG, KENT
Exec Dt:
02/22/2002
3
CHUANG, CHAO-HSUAN
Exec Dt:
02/22/2002
4
FAN, CHENG-HSUAN
Exec Dt:
02/22/2002
Assignee
1
RICHTEK TECHNOLOGY CORP.
6F, NO. 35, HSINTAI ROAD, CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7180886
US20030219004
10153784
Correspondence name and address
ROSENBERG, KLEIN & LEE
MORTON J. ROSENBERG
3458 ELLICOTT CENTER DR.
STE. 101
ELLICOTT CITY, MD 21043
Assignment: 2
Reel/Frame:013237/0965   Pages: 4
Recorded: 08/28/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, JING-MENG
Exec Dt:
07/01/2002
2
HWANG, KENT
Exec Dt:
07/01/2002
3
CHUANG, CHAO-HSUAN
Exec Dt:
07/01/2002
4
FAN, CHENG-HSUAN
Exec Dt:
07/01/2002
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUAN STREET, CHU PEI CITY
HSINCHU HSIEN, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6747508
US20030141923
10229160
Correspondence name and address
TROXELL LAW OFFICE PLLC
BRUCE H. TROXELL
5205 LEESBURG PIKE
SUITE 1404
FALLS CHURCH, VA 22041-3401
Assignment: 3
Reel/Frame:013303/0860   Pages: 3
Recorded: 09/18/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAN, CHENG-HSUAN
Exec Dt:
09/06/2002
2
LIU, JING-MENG
Exec Dt:
09/06/2002
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSINCHU, TAIWAN
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6703885
US20040051582
10245390
Correspondence name and address
BROBECK, PHLEGER & HARRISON LLP
RODGER L. TATE
INTELLECTUAL PROPERTY DEPARTMENT
1333 H STREET, N.W., SUITE 800
WASHINGTON, D.C. 20005
Assignment: 4
Reel/Frame:013437/0936   Pages: 4
Recorded: 10/30/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHUANG, CHAO-HSUAN
Exec Dt:
10/24/2002
2
LIU, JING-MENG
Exec Dt:
10/24/2002
3
FAN, CHENG-HSUAN
Exec Dt:
10/24/2002
4
HWANG, KENT
Exec Dt:
10/24/2002
Assignee
1
RICHTEK TECHNOLOGY CORP
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6844709
US20040085053
10283062
Correspondence name and address
ROSENBERG KLEIN & LEE
MORTON J. ROSENBERG
3458 ELLICOTT CENTER DRIVE
SUITE 101
ELLICOTT CITY, MD 21045
Assignment: 5
Reel/Frame:015245/0581   Pages: 3
Recorded: 04/20/2004
Attorney Dkt #:4444-0142PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIAO, YU-FEN
Exec Dt:
03/25/2004
2
FAN, CHENG-HSUAN
Exec Dt:
03/25/2004
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F1, NO. 20, TAI YUAN STREET
CHUPEI CITY HSINCHU HSIEN, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6960902
US20050231176
10827492
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
JOE MCKINNEY MUNCY
P.O. BOX 747
FALLS CHURCH, VA 22040-0747
Assignment: 6
Reel/Frame:015318/0133   Pages: 3
Recorded: 05/07/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUANG, JIAN-RONG
Exec Dt:
05/03/2004
2
TAI, LIANG-PIN
Exec Dt:
05/03/2004
3
HUANG, KENT
Exec Dt:
05/03/2004
4
WANG, HUNG-I
Exec Dt:
05/03/2004
5
FAN, CHENG-HSUAN
Exec Dt:
05/03/2004
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
US20040257056
10840370
Correspondence name and address
ROSENBERG, KLEIN & LEE
MORTON J. ROSENBERG, ESQ.
3458 ELLICOT CENTER DRIVE, SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 7
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: 8
Reel/Frame:018337/0936   Pages: 3
Recorded: 10/02/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAN, CHENG-HSUAN
Exec Dt:
09/25/2006
2
CHUANG, CHAO-HSUAN
Exec Dt:
09/25/2006
3
CHOU, HUNG-CHE
Exec Dt:
09/25/2006
4
YANG, CHING-HSIANG
Exec Dt:
09/25/2006
5
TAN, CHIH-PING
Exec Dt:
09/25/2006
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F. NO. 20, TAI YUEN STREET, CHUPEL CITY
HSINCHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7535690
US20070058310
11518446
Correspondence name and address
ROSENBERG, KLEIN & LEE
MORTON J. ROSENBERG
3458 ELLICOTT CENTER DRIVE, SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 9
Reel/Frame:018587/0276   Pages: 3
Recorded: 11/30/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHUANG, CHAO-HSUAN
Exec Dt:
10/20/2006
2
FAN, CHENG-HSUAN
Exec Dt:
10/20/2006
3
CHOU, HUNG-CHE
Exec Dt:
10/20/2006
4
YANG, CHING-HSIANG
Exec Dt:
10/20/2006
5
TAN, CHIH-PING
Exec Dt:
10/20/2006
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAL YUAN STREET, CHUPEI CITY
HSINCHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7619396
US20070075690
11526624
Correspondence name and address
MORTON J. ROSENBERG
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE
SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 10
Reel/Frame:018991/0804   Pages: 3
Recorded: 03/08/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAN, CHENG-HSUAN
Exec Dt:
02/06/2007
2
CHUANG, CHAO-HSUAN
Exec Dt:
02/06/2007
3
CHOU, HUNG-CHE
Exec Dt:
02/06/2007
4
YANG, CHING-HSIANG
Exec Dt:
02/06/2007
5
TAN, CHIH-PING
Exec Dt:
02/06/2007
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F., NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7714551
US20070188154
11705090
Correspondence name and address
MORTON J. ROSENBERG, ESQ.
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE, SUITE 101
ELLICOTT CITY, MARYLAND 21043
Assignment: 11
Reel/Frame:019308/0230   Pages: 4
Recorded: 05/17/2007
Attorney Dkt #:92,000-058 (RH-1028)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOU, HUNG-CHE
Exec Dt:
05/17/2007
2
CHUANG, CHAO-HSUAN
Exec Dt:
05/17/2007
3
FAN, CHENG-HSUAN
Exec Dt:
05/16/2007
4
TAI, LIANG-PIN
Exec Dt:
05/17/2007
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
6F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7489182
US20080284503
11749872
Correspondence name and address
TUNG & ASSOCIATES
838 W LONG LAKE RD
SUITE 120
BLOOMFIELD HILLS, MI 48302
Assignment: 12
Reel/Frame:019530/0019   Pages: 2
Recorded: 06/25/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAN, CHENG-HSUAN
Exec Dt:
05/17/2007
2
CHUANG, CHAO-HSUAN
Exec Dt:
05/17/2007
3
CHOU, HUNG-CHE
Exec Dt:
05/17/2007
4
YANG, CHING-HSIANG
Exec Dt:
05/17/2007
5
TAN, CHIH-PING
Exec Dt:
05/17/2007
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
6F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7570121
US20080224782
11821498
Correspondence name and address
RANDY W. TUNG
TUNG & ASSOCIATES
838 W. LONG LAKE ROAD
SUITE 120
BLOOMFIELD HILLS, MICHIGAN 48302
Assignment: 13
Reel/Frame:019360/0508   Pages: 5
Recorded: 05/31/2007
Attorney Dkt #:92000-055 (RH-1025)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAN, CHENG-HSUAN
Exec Dt:
05/18/2007
2
CHUANG, CHAO-HSUAN
Exec Dt:
05/18/2007
3
CHOU, HUNG-CHE
Exec Dt:
05/18/2007
4
YANG, CHING-HSIANG
Exec Dt:
05/18/2007
5
LIN, SHUI-MU
Exec Dt:
05/18/2007
6
TAN, CHIH-PING
Exec Dt:
05/18/2007
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
6F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7991172
US20080298605
11755894
Correspondence name and address
TUNG & ASSOCIATES
838 W LONG LAKE RD
SUITE 120
BLOOMFIELD HILLS, MI 48302
Assignment: 14
Reel/Frame:019693/0584   Pages: 2
Recorded: 08/14/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHUANG, CHAO-HSUAN
Exec Dt:
07/25/2007
2
FAN, CHENG-HSUAN
Exec Dt:
07/25/2007
3
CHOU, HUNG-CHE
Exec Dt:
07/25/2007
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F., NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7609533
US20080298095
11882637
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 15
Reel/Frame:020071/0967   Pages: 4
Recorded: 11/06/2007
Attorney Dkt #:92000-068 (RH-1032)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHUANG, CHAO-HSUAN
Exec Dt:
10/16/2007
2
FAN, CHENG-HSUAN
Exec Dt:
10/16/2007
3
CHOU, HUNG-CHE
Exec Dt:
10/16/2007
4
YANG, CHING-HSIANG
Exec Dt:
10/16/2007
Assignee
1
RICHTEK TECHNOLOGY CORPORATION
6F, NO. 20, TAI YUEN STREET
CHUPEI CITY, HSIN-CHU, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7728571
US20090115391
11935558
Correspondence name and address
TUNG & ASSOCIATES
838 W LONG LAKE RD
SUITE 120
BLOOMFIELD HILLS, MI 48302
Assignment: 16
Reel/Frame:021209/0917   Pages: 2
Recorded: 07/08/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUNAG, PEI-LUN
Exec Dt:
07/04/2008
2
FAN, CHENG-HSUAN
Exec Dt:
07/04/2008
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8000071
US20080298099
12155023
Correspondence name and address
MORTON J. ROSENBERG, ESQ.
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE
SUITE 101
ELLICOTT CUTY, MD 21043
Assignment: 17
Reel/Frame:023559/0850   Pages: 2
Recorded: 11/18/2009
Attorney Dkt #:MR2707-331
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHUANG, CHAO-HSUAN
Exec Dt:
11/09/2009
2
YANG, CHING-HSIANG
Exec Dt:
11/06/2009
3
FAN, CHENG-HSUAN
Exec Dt:
11/06/2009
4
CHOU, HUNG-CHE
Exec Dt:
11/09/2009
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY
HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8373404
US20100117617
12591079
Correspondence name and address
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY, MD 21043
Assignment: 18
Reel/Frame:024910/0070   Pages: 2
Recorded: 08/25/2010
Attorney Dkt #:MR2707-364
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAI, LIANG-PIN
Exec Dt:
08/12/2010
2
LIN, TZU-CHEN
Exec Dt:
08/13/2010
3
FAN, CHENG-HSUAN
Exec Dt:
08/13/2010
Assignee
1
RICHTEK TECHNOLOGY CORP.
5F, NO. 20, TAI YUEN STREET
CHUPEI CITY HSINCHU 310, TAIWAN R.O.C.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8503196
US20110018590
12838988
Correspondence name and address
MORTON J. ROSENBERG, ESQ.
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE
SUITE 101
ELLICOTT CITY, MD 21043

Search Results as of: 05/15/2024 06:33 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT