IP Library Assignment 004519/0468
Patent Assignment
Reel/Frame 004519/0468

Assignment of Assignors Interest.

Recorded: 1986-03-06 Pages: 1
Assignors
AHRGREN, LEIF G.
Executed: 1986-01-21
DE BELDER, ANTHONY N.
Executed: 1986-01-21
Assignee
PHARMACIA AB
S-751 82 UPPSALA, SWEDEN
Covered Property (1)
Polymer Having Quarternary Amino Groups
Patent: 4,591,638 →
Application: 06/377,193 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 7, 1997
From: PHARMACIA AB
To: PHARMACIA BIOTEC AB
Reel/Frame 008587/0274 →