Patent Assignment
Reel/Frame 014462/0862
Confirmation of Exclusive Patent Sublicense
Recorded: 2003-09-09
Pages: 4
Assignor
EYETECH PHARMACEUTICALS, INC.
Executed: 2002-12-17
Assignee
PFIZER INC.
235 EAST 42ND STREET, NEW YORK, NEW YORK, 10017
Covered Properties
(10)
Non-Antigenic Branched Polymer Conjugates
Patent:
5,643,575 →
Application:
08/143,403 →
Electrophilic Polyethylene Oxides for the Modification of Polysaccharides, Polypeptides (Proteins) and Surfaces
Patent:
5,650,234 →
Application:
08/304,656 →
Multiarmed, Monofunctional, Polymer for Coupling to Proteins and Surfaces
Patent:
5,932,462 →
Application:
08/443,383 →
Method of Preparing Polyalkylene Oxide Carboxylic Acids
Patent:
5,681,567 →
Application:
08/696,198 →
Non-Antigenic Branched Polymer Conjugates
Patent:
5,919,455 →
Application:
08/821,055 →
Water-Soluble Non-Antigenic Polymer Linkable to Biologically Active Material
Patent:
6,113,906 →
Application:
09/222,463 →
Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)
Multi-armed, monofunctional, and hydrolytically stable derivatives of poly (ethylene glycol) and related polymers for modification of surfaces and molecules
Application:
09/939,867 →
Method for the Preparation of 1-Benzotriazolyl Carbonate Esters of Poly(Ethylene Glycol)
Method for the Preparation of 1-Benzotriazolyl Carbonate Esters of Poly(Ethylene Glycol)
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 8, 2001
From: NNERDYNE, INC. BY ALAN R. CARLTON, ITS CORPORATE SECRETARY
To: BIOSURFACE ENGINEERING TECHNOLOGIES, INC.
Reel/Frame 012506/0072 →
Merger
Aug 31, 2009
From: NEKTAR THERAPEUTICS AL, CORPORATION
To: NEKTAR THERAPEUTICS
Reel/Frame 023196/0394 →
Grant of Security Interest
Jul 17, 2012
From: NEKTAR THERAPEUTICS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 028571/0141 →
Grant of Security Interest in United States Patents
Oct 6, 2015
From: NEKTAR THERAPEUTICS
To: TC LENDING, LLC, AS COLLATERAL AGENT
Reel/Frame 036796/0562 →
Release of Security Interest Recorded at Reel 28571, Frame 0141
Oct 14, 2015
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 036866/0700 →
Release of Security Interest
Apr 17, 2020
From: TC LENDING, LLC, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 053180/0009 →