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Patent Assignment Abstract of Title
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Total Assignments: 6
Patent #:
4259411
Issue Dt:
03/31/1981
Application #:
06070757
Filing Dt:
09/05/1979
Inventor:
MEI H. HWANG
Title:
ELECTROCONDUCTIVE COATING FORMULATIONS
Assignment: 1
Reel/Frame:
003810/0113Recorded: 11/13/1980Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
WINDHAGER, ROBERT H.
Exec Dt:
09/04/1979
HWANG MEI H.
Exec Dt:
09/04/1979
Assignee:
CALGON CORPORATION
ROUTE 60 & CAMPBELLS RUN ROD
ROBINSON TOWNSHIP, PENNSYLVANIA
Correspondent:
ROBERT WINDHAGER
1246 FERNRIDGE DRIVE
PITTSBURGH, PA. 15241
Assignment: 2
Reel/Frame:
003946/0553Recorded: 02/01/1982Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
WINDHAGER, ROBERT H.
Exec Dt:
01/25/1982
HWANG, MEI H.
Exec Dt:
01/25/1982
Assignee:
CALGON CORPORATION, A CORP. OF DE.
ROUTE 60 & CAMPBELLS RUN RD.
P.O. BOX 1346
PITTSBURGH, PENNSYLVANIA
Correspondent:
R. BRENT OLSON
PAT. DEPT.
MERCK & CO., INC.
P. O. BOX 2000
RAHWAY, N. J. 07065
Assignment: 3
Reel/Frame:
003949/0668Recorded: 02/22/1982Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
WINDHAGER, ROBERT H.
Exec Dt:
02/17/1982
HWANG, MEI H.
Exec Dt:
02/17/1982
Assignee:
CALGON CORPORATION, A CORP. OF DE.
ROT 60 & CAMPBELLS RUN RD.
ROBINSON TOWNSHIP, PENNSYLVANIA
Correspondent:
MARTIN L. KATZ
PAT. DEPT.
MERCK & CO., INC.
P. O. BOX 2000
RAHWAY, N. J. 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:
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: 6
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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