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 : CHENG, CHI HUNG
Total Assignments: 17
Assignment: 1
Reel/Frame:008895/0351   Pages: 2
Recorded: 01/12/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SULZER, GERALD M.
Exec Dt:
01/20/1997
2
CHENG, CHI HUNG
Exec Dt:
01/20/1997
3
KLOBUCAR, W. DIRK
Exec Dt:
01/20/1997
4
KOLICH, CHARLES H.
Exec Dt:
01/20/1997
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5770771
NONE
08786396
Correspondence name and address
ALBEMARLE CORPORATION
MR. PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801-1780
Assignment: 2
Reel/Frame:009247/0713   Pages: 2
Recorded: 06/04/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SULZER, GERALD M.
Exec Dt:
01/20/1997
2
CHENG, CHI HUNG
Exec Dt:
01/20/1997
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5872293
NONE
08785104
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1780
Assignment: 3
Reel/Frame:009532/0133   Pages: 2
Recorded: 10/19/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
01/20/1997
2
SULZER, GERALD M.
Exec Dt:
01/20/1997
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5871667
NONE
08786536
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 4
Reel/Frame:009591/0121   Pages: 2
Recorded: 11/13/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
01/20/1997
2
SULZER, GERALD M.
Exec Dt:
01/20/1997
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5955630
NONE
08786535
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 5
Reel/Frame:011580/0351   Pages: 3
Recorded: 03/02/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
02/04/1998
2
BALHOFF, JOHN F.
Exec Dt:
02/06/1998
3
LIN, RONNY W.
Exec Dt:
02/04/1998
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6215032
NONE
09021690
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
PATENT AND TRADEMARK DIVISION
451 FLORIDA STREET
BATON ROUGE, LA 70801
Assignment: 6
Reel/Frame:011681/0825   Pages: 3
Recorded: 04/06/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
02/11/1998
2
SULZER, GERALD M.
Exec Dt:
02/12/1998
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6235941
NONE
09619164
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
PATENT DEPARTMENT DIVISION
451 FLORIDA STREET
BATON ROUGE, LA 70814
Assignment: 7
Reel/Frame:009639/0088   Pages: 3
Recorded: 12/14/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SULZER, GERALD M.
Exec Dt:
03/23/1998
2
CHENG, CHI HUNG
Exec Dt:
03/23/1998
3
KLOBUCAR, W. DIRK
Exec Dt:
03/30/1998
4
KOLICH, CHARLES H.
Exec Dt:
03/30/1998
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5883297
NONE
09058367
Correspondence name and address
ALBEMARLE CORPORATION
MR. PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Assignment: 8
Reel/Frame:010660/0006   Pages: 3
Recorded: 02/28/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BERRIS, BRUCE C.
Exec Dt:
07/09/1999
2
CHENG, CHI HUNG
Exec Dt:
07/09/1999
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6046358
NONE
09351888
Correspondence name and address
ALBEMARLE CORPORATION
MR. PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801
Assignment: 9
Reel/Frame:013659/0013   Pages: 3
Recorded: 01/14/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
03/02/2002
2
SULZER, GERALD M.
Exec Dt:
04/02/2002
3
BALHOFF, JOHN F.
Exec Dt:
03/02/2002
Assignee
1
ALBEMARLE CORPORATION
330 S. 4TH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6528665
NONE
10116482
Correspondence name and address
ALBEMARLE CORPORATION
PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801
Assignment: 10
Reel/Frame:013643/0722   Pages: 3
Recorded: 12/30/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
03/14/2002
2
SULZER, GERALD M.
Exec Dt:
04/02/2002
Assignee
1
ALBEMARLE CORPORATION
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6525208
NONE
10116508
Correspondence name and address
PIPPENGER, PHILLIP M.
PHILIP M. PIPPENGER
451 FLORIDA STREET
BATON ROUGE, LA 70801
Assignment: 11
Reel/Frame:019020/0168   Pages: 5
Recorded: 03/15/2007
Attorney Dkt #:AN-7421 (ORDER #07-050)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GATTO, VINCENT J.
Exec Dt:
05/20/2004
2
ELNAGAR, HASSAN Y.
Exec Dt:
05/14/2004
3
CHENG, CHI HUNG
Exec Dt:
05/19/2004
4
ADAMS, J. ROBERT
Exec Dt:
05/12/2004
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7667066
US20050192455
10788850
Correspondence name and address
MARCY M. HOEFLING
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 12
Reel/Frame:018666/0076   Pages: 6
Recorded: 12/21/2006
Attorney Dkt #:S1-7337 (ORDER #06-315)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAUER, JOE D.
Exec Dt:
12/18/2006
2
KNIGHT, CHRISTOPHER S.
Exec Dt:
12/13/2006
3
CHENG, CHI HUNG
Exec Dt:
12/13/2006
4
EVERLY, CHARLES R.
Exec Dt:
12/05/2006
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070260089
11547333
Correspondence name and address
JEREMY J. KLIEBERT
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 13
Reel/Frame:020030/0624   Pages: 8
Recorded: 10/29/2007
Attorney Dkt #:OR-7424 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PRADHAN, MILIND MADHAV
Exec Dt:
09/21/2007
2
CHENG, CHI HUNG
Exec Dt:
09/21/2007
3
MATHUR, RAJEEV S.
Exec Dt:
10/05/2007
4
HOLUB, RICHARD A.
Exec Dt:
10/09/2007
5
IMHOFF, DONALD W.
Exec Dt:
09/21/2007
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7871547
US20080023856
11718380
Correspondence name and address
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 14
Reel/Frame:024643/0561   Pages: 10
Recorded: 07/07/2010
Attorney Dkt #:F1-7875*-PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LAYMAN, WILLIAM J., JR.
Exec Dt:
04/20/2010
2
GE, ZHONGXIN
Exec Dt:
04/20/2010
3
MACK, ARTHUR G.
Exec Dt:
04/28/2010
4
CHENG, CHI HUNG
Exec Dt:
04/20/2010
5
COLONIUS, NEAL J.
Exec Dt:
04/20/2010
6
JONES, SARAH C.
Exec Dt:
04/20/2010
7
ANDERSON, STEVEN A.
Exec Dt:
04/20/2010
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8802787
NONE
13264184
Correspondence name and address
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 15
Reel/Frame:043419/0244   Pages: 5
Recorded: 08/28/2017
Attorney Dkt #:X1-7998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
12/08/2014
2
NIEMAN, JAN
Exec Dt:
12/16/2014
3
MARUS, GREGORY ALAN
Exec Dt:
12/08/2014
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20170333867
15522829
Correspondence name and address
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 16
Reel/Frame:045626/0346   Pages: 5
Recorded: 04/24/2018
Attorney Dkt #:X1-8011 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, CHI HUNG
Exec Dt:
09/01/2015
2
SWITZER, JACKSON R.
Exec Dt:
09/04/2015
3
NIEMAN, JAN
Exec Dt:
09/01/2015
Assignee
1
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LOUISIANA 70801-1765
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10648061
US20180245180
15754113
Correspondence name and address
ALBEMARLE CORPORATION
451 FLORIDA STREET
BATON ROUGE, LA 70801-1765
Assignment: 17
Reel/Frame:056946/0152   Pages: 4
Recorded: 07/22/2021
Attorney Dkt #:L1-8074-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHENG, CHI HUNG
Exec Dt:
02/04/2020
Assignee
1
ALBEMARLE CORPORATION
4250 CONGRESS STREET
SUITE 900
CHARLOTTE, NORTH CAROLINA 28209
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220081306
17423250
Correspondence name and address
ALBEMARLE CORPORATION
4250 CONGRESS STREET
SUITE 900
CHARLOTTE, NC 28209

Search Results as of: 05/31/2024 09:16 PM
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