Patent Assignment
Reel/Frame 027539/0179
Assignment of Assignor's Interest
Recorded: 2012-01-17
Pages: 3
Assignors
SPROUTS, SANDRA R.
Executed: 2003-05-15
GOODWIN, FREDERICK R.
Executed: 2003-05-15
DAL BO, ALESSANDRO
Executed: 2003-05-27
Assignee
MBT HOLDING AG
VULKANSTRASSE 110, ZURICH, CH-8048, SWITZERLAND
Covered Property
(1)
Rheology Stabilizer for Cementitious Compositions
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Nunc Pro Tunc Assignment
Jan 17, 2012
From: DEGUSSA CONSTRUCTION CHEMICALS (EUROPE) AG, FORMERLY KNOWN AS MBT HOLDING AG
To: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
Reel/Frame 027539/0237 →
Assignment of Assignor's Interest
Aug 18, 2023
From: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
To: SIKA TECHNOLOGY AG
Reel/Frame 064640/0880 →