IP Library › Assignment 004926/0657
Patent Assignment
Reel/Frame 004926/0657

Assignment of Assignors Interest.

Recorded: 1988-07-20 Pages: 1
Assignors
SHARIFIAN, HOSSEIN
Executed: 1988-07-15
TANNER, ALAN R.
Executed: 1988-07-15
Assignee
Covered Property (1)
Process for Preparing Quaternary Ammonium Hydroxides
Patent: 4,917,781 →
Application: 07/221,720 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Effective on 03/11/1991 May 1, 1992
From: SOUTHWESTERN ANALYTICAL CHEMICALS, INC., A CORPORATION OF TX
To: SACHEM, INC.
Reel/Frame 006101/0177 →