Patent Assignment
Reel/Frame 003982/0489
Assignment of Assignors Interest.
Recorded: 1982-03-01
Pages: 1
Assignor
MARUHNIC, PETER
Executed: 1982-02-26
Assignee
Covered Property
(1)
Viscosity Measurement Using Pressurized Viscometer Device
Patent:
4,448,060 →
Application:
06/353,456 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 11, 1983
From: HYDROCARBON RESEARCH, INC.
To: HRI, INC.
Reel/Frame 004118/0001 →
Assignment of Assignor's Interest
Feb 2, 1994
From: HRI, INC.
To: HYDROCARBON RESEARCH,INC.
Reel/Frame 006847/0641 →
Assignment of Assignor's Interest
Jun 28, 1995
From: HYDROCARBON RESEARCH, INC.
To: INSTITUT FRANCAIS DU PETROLE
Reel/Frame 007662/0308 →