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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
7495124
Issue Dt:
02/24/2009
Application #:
11048172
Filing Dt:
02/01/2005
Publication #:
20050222291
Pub Dt:
10/06/2005
Inventors:
Hans-Georg Pirkl, Jeffrey Bolton, Walter Meckel, Ulrich Wolf, Matthias Wintermantel et al
Title:
PROCESS FOR THE PRODUCTION OF VERY PURE 2,4'-METHYLENEDIPHENYL DIISOCYANATE
Assignment: 1
Reel/Frame:
016682/0525Recorded: 06/13/2005Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
PIRKL, HANS-GEORG
Exec Dt:
02/21/2005
BOLTON, JEFFREY
Exec Dt:
04/25/2005
MECKEL, WALTER
Exec Dt:
05/20/2005
WOLF, ULRICH
Exec Dt:
03/07/2005
WINTERMANTEL, MATTHIAS
Exec Dt:
02/23/2005
MAHRENHOLTZ, JOCHEN
Exec Dt:
03/02/2005
Assignee:
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Correspondent:
N. DENISE BROWN
BAYER MATERIALSCIENCE LLC
PATENT DEPARTMENT100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 2
Reel/Frame:
038399/0306Recorded: 03/30/2016Pages: 52
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
BAYER MATERIALSCIENCE AG
Exec Dt:
09/01/2015
Assignee:
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Correspondent:
DONALD R. PALLADINO
1 COVESTRO CIRCLE
BLDG. 4
PITTSBURGH, PA 15205

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