Patent Assignment
Reel/Frame 012134/0280
Confirmatory Assignment
Recorded: 2001-09-06
Pages: 4
Assignor
E. F. HOUGHTON & CO.
Executed: 1990-09-01
Assignee
HOUGHTON TECHNICAL, INC.
300 DELAWARE AVENUE, SUITE 316, WILMINGTON, DELAWARE, 19801
Covered Properties
(5)
Method of Quenching
Patent:
4,404,044 →
Application:
06/299,961 →
Metal Quenching Process
Patent:
4,381,205 →
Application:
06/365,531 →
Water-Based Hydraulic Fluid
Patent:
4,481,125 →
Application:
06/508,831 →
Polyoxazolines in Aqueous Quenchants
Patent:
4,486,246 →
Application:
06/561,980 →
Aqueous Quenchants Containing Polyoxazolines and N-Vinyl Heterocyclic Polymers and Their Use in Quenching Steel
Patent:
4,528,044 →
Application:
06/660,092 →
Related Assignments
(10)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 18, 1981
From: WARCHOL, JOSEPH F.
To: E.F. HOUGHTON AND COMPANY, A CORP. OF PA.
Reel/Frame 003927/0757 →
Assignment of Assignors Interest.
Oct 18, 1982
From: WARCHOL, JOSEPH F.
To: E.F.HOUGHTON COMPANY MADISON & VANBUREN AVES. A CORP OF PA.
Reel/Frame 004055/0711 →
Assignment of Assignors Interest.
Jul 8, 1983
From: HOLGADO, ROSAURO V.
To: E.F. HOUGHTON & CO., A CORP. OF PA.
Reel/Frame 004145/0821 →
Assignment of Assignors Interest.
Dec 29, 1983
From: WARCHOL, JOSEPH F.
To: E.F. HOUGHTON & CO., A CORP. OF PA
Reel/Frame 004236/0047 →
Assignment of Assignors Interest.
Oct 25, 1984
From: WARCHOL, JOSEPH F.
To: E.F. HOUGHTON & CO.
Reel/Frame 004334/0642 →
Corrective Assignment to Correct Assignee Name Recorded on Reel 012134 Frame 0280.
Mar 6, 2002
From: E. F. HOUGHTON & CO.
To: HOUGHTON TECHNICAL CORP.
Reel/Frame 012983/0451 →
Security Interest
Mar 19, 2002
From: HOUGHTON TECHNICAL CORP.
To: JOHN HANCOCK LIFE INSURANCE COMPANY, AS COLLATERAL AGENT
Reel/Frame 012762/0416 →
Grant of Security Interest
Mar 10, 2008
From: HOUGHTON TECHNICAL CORP.
To: THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND
Reel/Frame 020617/0500 →
Grant of Security Interest
Mar 10, 2008
From: EFHCO INC.
To: THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND
Reel/Frame 020617/0494 →
Release of Security Interest
Feb 7, 2011
From: THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND, AS COLLATERAL AGENT
To: HOUGHTON TECHNICAL CORP.
Reel/Frame 025751/0167 →