IP Library › Assignment 016662/0378
Patent Assignment
Reel/Frame 016662/0378

Assignment of Assignor's Interest

Recorded: 2005-10-20 Pages: 3
Assignors
STEIN, MICHAEL
Executed: 1989-03-23
HELDMANN, DIETER
Executed: 1989-03-22
FRITZSCH, THOMAS
Executed: 1989-04-12
SIEGERT, JOACHIM
Executed: 1989-03-29
ROESSLING, GEORG
Executed: 1989-03-29
SPECK, ULRICH
Executed: 1989-05-17
Assignee
SCHERING AKTIENGESELLSCHAFT
MUELLERSTRASSE 178, BERLIN, D-13353, GERMANY
Covered Property (1)
Ultrasonic Contrast Agents, Process for Their Preparation and Their Use as a Diagnostic and Therapeutic Agent
Patent: 6,071,496 →
Application: 08/477,642 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 26, 2005
From: SCHERING AKTIENGESELLSCHAFT
To: ACUSPHERE, INC.
Reel/Frame 016446/0880 →
Security Agreement Nov 3, 2008
From: ACUSPHERE, INC.
To: CEPHALON, INC.
Reel/Frame 021773/0477 →