Patent Assignment
Reel/Frame 008251/0919
Merger
Recorded: 1996-12-09
Pages: 13
Assignor
RINGSFORFF-WERKE GMBH
Executed: 1995-10-06
Assignee
SGL CARBON AG
RHEINGAUSTRASSE 182, WIESBADEN, 65203, GERMANY
Covered Properties
(7)
Method for the Manufacture of Segments for Commutators
Patent:
4,349,384 →
Application:
06/163,731 →
Receptacle for Flameless Atomic Absorption Spectroscopy
Patent:
4,726,678 →
Application:
06/912,928 →
Electrode for Electrochemical Processes
Patent:
4,849,086 →
Application:
07/127,657 →
Graphite Tube Furnace with Specimen Support for Atomic Absorption Spectroscopy
Patent:
4,971,438 →
Application:
07/319,136 →
Graphite Tube Furnace with Specimen Support for Atomic Absorption Spectroscopy
Patent:
4,946,278 →
Application:
07/373,174 →
Graphite Tube Furnace with Stationary Specimen Support for Atomic Absorption Spectroscopy
Patent:
5,083,864 →
Application:
07/656,287 →
Multipart Support Crucible and Method for Producing the Same
Patent:
5,372,090 →
Application:
08/060,729 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
May 10, 1982
From: WEINERT, HANS
To: RINGSDORFF-WERKE GMBH
Reel/Frame 003989/0954 →
Assignment of Assignors Interest.
Apr 17, 1989
From: HUTSCH, BRUNO; VESPER, WOLFGANG
To: RINGSDORFF-WERKE GMBH
Reel/Frame 005063/0742 →
Assignment of Assignors Interest.
Jun 1, 1990
From: HUTSCH, BRUNO; SCHMIDT, BERND
To: RINGSDORFF-WERKE GMBH
Reel/Frame 005337/0100 →
Assignment of Assignors Interest.
Aug 31, 1990
From: HUTSCH, BRUNO; SCHMIDT, BERND
To: RINGSDORFF-WERKE GMBH
Reel/Frame 005427/0788 →
Assignment of Assignors Interest.
Nov 18, 1991
From: HUETSCH, BRUNO; SCHMIDT, BERND
To: RINGSDORFF-WERKE GMBH A GERMAN CORPORATION
Reel/Frame 005909/0001 →
Change of Name Effective on 06/24/1992
Apr 20, 1993
From: SIGRI GMBH
To: SIGRI GREAT LAKES CARBON GMBH
Reel/Frame 006504/0263 →
Assignment of Assignor's Interest
Sep 22, 1994
From: WEGMETH, JULIUS; SCHMIDT, BERND
To: RINSDROFF-WERKE GMBH
Reel/Frame 007145/0806 →
Change of Name
Dec 9, 1996
From: SIGRI GREAT LAKES CARBON GMBH
To: SGL CARBON AKTIENGESELLSCHAFT
Reel/Frame 008251/0932 →