Patent Assignment
Reel/Frame 006372/0248
Assignment of Assignors Interest.
Recorded: 1992-11-02
Pages: 15
Assignor
NL INDUSTRIES, INC.
Executed: 1987-11-20
Assignee
EXXON CHEMICAL PATENTS, INC.
9 OLD KINGS HIGHWAY SOUTH, DARIEN, CONNECTICUT, 06820
Covered Properties
(5)
Antifoulant Additives for Hydrocarbon Streams
Patent:
4,216,076 →
Application:
06/058,126 →
Process of Removing Hydrogen Sulfide from Gas Mixtures
Patent:
4,515,759 →
Application:
06/549,274 →
Method for Controlling Foaming in Delayed Coking Process
Patent:
4,612,109 →
Application:
06/734,958 →
Process for Removal of Mercaptans from Gas Streams
Patent:
4,690,805 →
Application:
06/838,379 →
Process and Composition for Removal of Mercaptans from Gas Streams
Patent:
4,758,371 →
Application:
07/062,207 →
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Nov 3, 1983
From: BHATIA, KISHAN
To: NL INDUSTRIES INC A NJ CORP
Reel/Frame 004193/0041 →
Assignment of Assignors Interest.
Jul 19, 1984
From: BURNES, EDWARD E.; BHATIA, KISHAM
To: NL INDUSTRIES, INC.
Reel/Frame 004282/0354 →
Assignment of Assignors Interest.
Mar 11, 1986
From: BHATIA, KISHAN; GARCIA, JOHN G. JR.
To: NL INDUSTRIES, INC.
Reel/Frame 004527/0630 →
Assignment of Assignor's Interest
Feb 10, 1997
From: EXXON CHEMICAL PATENTS, INC.
To: NALCO/EXXON ENERGY CHEMICALS, LP
Reel/Frame 008376/0134 →
Change of Name
Dec 7, 2001
From: NALCO/EXXON ENERGY CHEMICALS, L.P.
To: ONDEO NALCO ENERGY SERVICES, L.P.
Reel/Frame 012312/0854 →
Grant of Security Interest
Dec 8, 2003
From: ONDEO NALCO ENERGY SERVICES, L.P.
To: CITICORP NORTH AMERICA, INC. AS ADMINISTRATIVE AGENT
Reel/Frame 014797/0293 →
Change of Name
Jan 23, 2006
From: ONDEO NALCO ENERGY SERVICES, L.P.
To: NALCO ENERGY SERVICES, L.P.
Reel/Frame 017045/0196 →
Merger
Mar 14, 2006
From: NALCO ENERGY SERVICES, L.P.
To: NALCO COMPANY
Reel/Frame 017297/0730 →
Change of Name
Feb 28, 2017
From: NALCO COMPANY
To: NALCO COMPANY LLC
Reel/Frame 041836/0364 →
Release of Security Interest
Feb 28, 2017
From: CITICORP NORTH AMERICA, INC.
To: NALCO COMPANY
Reel/Frame 041837/0366 →
Assignment of Assignor's Interest
Feb 28, 2017
From: NALCO COMPANY LLC; CALGON CORPORATION; CALGON LLC; ONDEO NALCO ENERGY SERVICES, L.P.
To: ECOLAB USA INC.
Reel/Frame 041836/0437 →