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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
4375526
Issue Dt:
03/01/1983
Application #:
06323329
Filing Dt:
11/20/1981
Inventors:
JOHN D. ZUPANOVICH, JOHN G. MYERS, JERRY L. WALKER
Title:
ANIONIC POLYMERS FOR REDUCTION OF VISCOSITY OF A MAGNESIUM HYDROXIDE FILTER CAKE PASTE
Assignment: 1
Reel/Frame:
004150/0360Recorded: 07/25/1983Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
KLEMAN, GARY B.
Exec Dt:
05/11/1981
Assignee:
CALGON CORPORATION, P.O. BOX 1346, PITTSBURGH, PA , ROUTE 60 & CAMPBELLS RUN ROAD, ROBINSON TOWNSHIP, PA. A DE CORP.
DELAWARE
Correspondent:
R. BRENT OLSON
PATENT DEPT.
MERCK & CO., INC.
P. O. BOX 2000
RAHWAY, NJ 07065
Assignment: 2
Reel/Frame:
004068/0834Recorded: 12/20/1982Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
ZUPANOVICH, JOHN D.
Exec Dt:
11/18/1981
MYERS, JOHN G.
Exec Dt:
11/18/1981
WALKER, JERRY L.
Exec Dt:
11/18/1981
Assignee:
CALGON CORPORATION
ROUTE 60 & CAMPBELLS RUN RAOD
ROBINSON TOWNSHIP, PENNSYLVANIA
Correspondent:
R. BRENT OLSON
PATENT DEPARTMENT
MERCK & CO., INC.
P. O. BOX 2000
RAHWAY, NJ 07065
Assignment: 3
Reel/Frame:
004149/0101Recorded: 06/27/1983Pages: 3
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JUNE 28, 1982 DELAWARE
Assignor:
CALGON CORPORATION
Exec Dt:
06/24/1982
Assignee:
CALGON CARBON CORPORATION
NOT PROVIDED
Correspondent:
R. BRENT OLSON
MERCK & CO., INC., PAT. DEPT.
P. O. BOX 2000
RAHWAY, NJ 07065
Assignment: 4
Reel/Frame:
004076/0929Recorded: 01/03/1983Pages: 14
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
CALGON CARBON CORPORATION (FORMERLY CALGON CORPORATION) A DE COR.
Exec Dt:
12/14/1982
Assignee:
CALGON CORPORATION
ROUTE 60 & CAMPBELL'S RUN ROAD, ROBINSON TOWNSHIP
P.O. BX 1346
PITTSBURGH, PENNSYLVANIA 15230
Correspondent:
CALGON CORPORATION
R. BRENT OLSON
CALGON CTR. BOX 1346
PITTSBURGH, PA 15230
Assignment: 5
Reel/Frame:
004149/0104Recorded: 06/27/1983Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
CALGON CARBON CORPORATION
Exec Dt:
12/29/1982
Assignee:
CALGON CORPORATION
ROUTE 60 & CAMPBELL'S RUN ROAD
A CORP. OF DE
ROBINSON TOWNSHIP, PENNSYLVANIA
Correspondent:
R. BRENT OLSON
MERCK & CO., INC., PAT. DEPT.
P. O. BOX 2000
RAHWAY, NJ 07065
Assignment: 6
Reel/Frame:
007027/0973Recorded: 06/21/1994Pages: 7
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
CALGON CORPORATION
Exec Dt:
06/20/1994
Assignee:
ECC SPECIALTY CHEMICALS, INC.
P.O. BOX 1346 ROUTE 60 & CAMPBELLS RUN ROAD ROBINSON TOWNSHIP PITTSBURGH, PA 15230
PENNSYLVANIA
Correspondent:
CALGON CORPORATION
CRAIG C. COCHENOUR, ESQ.
P.O. BOX 1346, ROBINSON TOWNSHIP
ROUTE 60 & CAMPBELLS RUN ROAD
PITTSBURGH, PA 15230
Assignment: 7
Reel/Frame:
007027/0980Recorded: 06/21/1994Pages: 8
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
ECC SPECIALTY CHEMICALS, INC.
Exec Dt:
06/20/1994
Assignee:
CALGON CORPORATION
P.O. BOX 1346 ROUTE 60 & CAMPBELLS RUN ROAD ROBINSON TOWNSHIP PITTSBURGH, PA 15230
PENNSYLVANIA
Correspondent:
CALGON CORPORATION
CRAIG C. COCHENOUR, ESQ.
P.O. BOX 1346, ROBINSON TOWNSHIP
ROUTE 60 & CAMPBELLS RUN ROAD
PITTSBURGH, PA 15230

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