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 Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 4
Patent #:
Issue Dt:
03/17/1998
Application #:
08806139
Filing Dt:
02/25/1997
Inventors:
HEIKO BECHHAUS, HARRO WITT, UWE-JENS ZARNACK, GERD GREGER
Title:
PROCESS FOR THE SEPARATION OF HIGH-BOILING MATERIALS FROM THE REACTION MIXTURE GENERATED DURING THE PRODUCTION OF DIAMINOTOLUENE
Assignment: 1
Reel/Frame:
008532/0515Recorded: 02/25/1997Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
02/10/1997
Exec Dt:
02/17/1997
Exec Dt:
02/17/1997
Exec Dt:
02/12/1997
Assignee:
PATENT UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Correspondent:
BAYER CORPORATION
LYNDANNE M. WHALEN
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205
Assignment: 2
Reel/Frame:
038353/0325Recorded: 04/05/2016Pages: 55
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
09/01/2015
Assignee:
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Correspondent:
DONALD R. PALLADINO
1 COVESTRO CIRCLE
BLDG 4
PITTSBURGH, PA 15205
Assignment: 3
Reel/Frame:
038399/0358Recorded: 03/22/2016Pages: 55
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
09/01/2015
Assignee:
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Correspondent:
DONALD R. PALLADINO
1 COVESTRO CIRCLE
BLDG 4
PITTSBURGH, PA 15205
Assignment: 4
Reel/Frame:
038044/0799Recorded: 03/09/2016Pages: 16
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/29/2016
Assignee:
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Correspondent:
DONALD R. PALLADINO
1 COVESTRO CIRCLE
BLDG. 4
PITTSBURGH, PA 15205

Search Results as of: 06/17/2025 08:17 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