IP Library Assignment 012897/0070
Patent Assignment
Reel/Frame 012897/0070

Assignment of Assignor's Interest

Recorded: 2002-05-13 Pages: 3
Assignor
ELLENBERGER, PETER
Executed: 2002-02-20
Assignee
MBT HOLDING AG
VULKANSTRASSE 110, CH-8048 ZURICH, SWITZERLAND
Covered Property (1)
Tunnel Boring with Foamed Composition
Patent: 6,802,673 →
Application: 10/049,367 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 19, 2003
From: DEGUSSA CONSTRUCTION CHEMICALS (EUROPE) AG FORMERLY KNOWN AS MBT HOLDING AG
To: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
Reel/Frame 014788/0877 →