IP Library › Assignment 007729/0361
Patent Assignment
Reel/Frame 007729/0361

Assignment of Assignor's Interest

Recorded: 1995-10-27 Pages: 3
Assignors
BERG, VOLKMAR
Executed: 1995-10-20
RIFFEL, SIEGFRIED
Executed: 1995-10-20
Assignee
HOECHST AKTIENGESELLSCHAFT
FRANKFURT AM MAIN, 65926, GERMANY
Covered Property (1)
Drainage Concrete
Patent: 5,861,057 →
Application: 08/549,075 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 27, 1997
From: HOECHST AKTIENGESELLSCHAFT
To: CLARIANT GMBH
Reel/Frame 008855/0765 →
Assignment of Assignor's Interest Jul 10, 2003
From: CLARIANT GMBH
To: CELANESE EMULSIONS GMBH
Reel/Frame 014301/0435 →