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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
08/15/1989
Application #:
07105867
Filing Dt:
10/08/1987
Inventor:
THOMAS J. BELK
Title:
PARTICLE CLASSIFIER AND METHOD
Assignment: 1
Reel/Frame:
005070/0680Recorded: 05/15/1989Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
10/02/1987
Assignee:
RICHMOND, VIRGINIA
Correspondent:
JOHN F. SIEBERTH
PATENT & TRADEMARK DIVISION
ETHYL CORPORATION
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 2
Reel/Frame:
007109/0340Recorded: 08/16/1994Pages: 62
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/28/1994
Assignee:
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Correspondent:
MR. PHILIP M. PIPPONGER
PATENT AND TRADEMARK DIVISION
ALBERMARLE CORPORATION
451 FLORID BOULEVARD
BATON ROUGE, LA 70801
Assignment: 3
Reel/Frame:
007588/0678Recorded: 12/15/1995Pages: 7
Conveyance:
GRANT OF RIGHT AND LICENSE
Assignor:
Exec Dt:
12/04/1995
Assignee:
501 PEARL STREET
ST. PETERS, MISSOURI 63376
Correspondent:
JOSEPH F. DEPUMPO
AKIN, GUMP, STRAUSS, HAUER & FELD, LLP
1700 PACIFIC AVENUE, SUITE 4100
DALLAS, TEXAS 75201-4618

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