Patent Assignment
Reel/Frame 005956/0745
Assignment of Assignors Interest.
Recorded: 1991-12-19
Pages: 3
Assignors
HU, HOPIN
Executed: 1991-12-19
KATSNELSON, INESSA
Executed: 1991-12-19
WU, XIAOSONG
Executed: 1991-12-19
Assignee
GELMAN SCIENCES, INC. A CORP. OF MICHIGAN
600 S. WAGNER ROAD, ANN ARBOR, MICHIGAN
Covered Property
(1)
Hydrophilic Membranes Prepared from Polyethersulfone/Poly-2-Oxazoline/ Polyvinylpyrrolidone Blend
Patent:
5,178,765 →
Application:
07/810,234 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Collateral Assignment
Apr 27, 1993
From: GELMAN SCIENCES, INC. A MICHIGAN CORPORATION
To: NBD BANK, N.A.
Reel/Frame 006537/0374 →
Statement of Change-Security Interest
Mar 23, 1998
From: NBD BANK, N.A.
To: GELMAN SCIENCES, INC.
Reel/Frame 009052/0838 →
Assignment of Assignor's Interest
Mar 27, 1998
From: GELMAN SCIENCES, INC.
To: PALL CORPORATION
Reel/Frame 009146/0135 →