Patent Assignment
Reel/Frame 005822/0552
Assignment of Assignors Interest.
Recorded: 1991-09-03
Pages: 2
Assignor
PPG INDUSTRIES, INC.
Executed: 1991-08-16
Assignee
Covered Property
(1)
Polarographic-Amperometric Three-Electrode Sensor
Patent:
5,000,180 →
Application:
07/386,759 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jul 31, 1989
From: KUYPERS, MARTINUS H.; STEEGHS, GERARDUS F. J.
To: PPG BIOMEDICAL SYSTEMS, INC., A CORP. OF PA.
Reel/Frame 005107/0348 →
Merger
May 21, 1990
From: PPG BIOMEDICAL SYSTEMS, INC., A CORP. OF DE.
To: PPG INDUSTRIES, INC., A CORP. OF PA.
Reel/Frame 005368/0234 →