IP Library Assignment 003927/0007
Patent Assignment
Reel/Frame 003927/0007

Assignment of Assignors Interest.

Recorded: 1981-11-17 Pages: 1
Assignors
TIEFENTHALER, KARL H. O.
Executed: 1980-10-02
WYSS, ULRICH
Executed: 1980-10-02
Assignee
MEYHALL CHEMICAL A.G.
P.O. BOX 862, A CORP. OF SWITZERLAND, 8280 KREUZLINGEN, SWITZERLAND
Covered Property (1)
Water Soluble Guar Product and Method for Making It
Patent: 4,320,226 →
Application: 06/195,583 →
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Sep 9, 1991
From: HI-TEK POLYMERS, INC., A GA CORP.; RHONE-POULENC INC., A NY CORP.
To: STEIN, HALL & CO. INC.,
Reel/Frame 005826/0726 →
Merger Nov 28, 1997
From: STEIN, HALL & CO. INC.
To: RHONE-POULENC INC.
Reel/Frame 008848/0068 →
Assignment of Assignor's Interest Feb 6, 1998
From: RHONE-POULENC INC.
To: RHODIA INC.
Reel/Frame 010404/0268 →
Invalid Recording. See Recording at Reel 010404, Frame 0268. Feb 6, 1998
From: RHONE-POULENC INC.
To: RHODIA INC.
Reel/Frame 008955/0873 →