Patent Assignment
Reel/Frame 005958/0931
Assignment of Assignors Interest.
Recorded: 1991-12-16
Pages: 3
Assignee
DEGUSSA AKTIENGESELLSCHAFT, A GERMAN CORP.
WEISSFRAUENSTRASSE 9, 6000 FRANKFURT AM MAIN 1, GERMANY
Covered Property
(1)
Gold(I) Mercaptocarboxylic Acid Esters, Method of Their Preparation and Use
Patent:
5,235,079 →
Application:
07/807,210 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 18, 2000
From: DEGUSSA AKTIENGESELLSCHAFT
To: DEGUSSA-HULS AKTIENGESELLSCHAFT
Reel/Frame 010719/0914 →
Merger
Jun 6, 2001
From: DEGUSSA-HULS AKTIENGESELLSCHAFT
To: DEGUSSA AG
Reel/Frame 011855/0608 →
Assignment of Assignor's Interest
Jun 25, 2001
From: DEGUSSA AKTIENGESELLSCHAFT
To: DMC2 DEGUSSA METALS
Reel/Frame 011923/0370 →
Nunc Pro Tunc Assignment
Nov 4, 2005
From: DMC^2 DEGUSSA METALS CATALYSTS CERDEC CORPORATION
To: FERRO GMBH
Reel/Frame 016722/0533 →
Assignment of Assignor's Interest
Dec 6, 2010
From: FERRO GMBH
To: W. C. HERAEUS GMBH
Reel/Frame 025450/0800 →
Assignment of Assignor's Interest
May 21, 2014
From: W.C. HERAEUS GMBH & CO. KG
To: HERAEUS PRECIOUS METALS GMBH & CO. KG
Reel/Frame 032973/0477 →