Patent Assignment
Reel/Frame 004282/0354
Assignment of Assignors Interest.
Recorded: 1984-07-19
Pages: 1
Assignee
NL INDUSTRIES, INC.
1230 AVENUE OF THE AMERICAS, A NJ CORP., NEW YORK, NEW YORK
Covered Property
(1)
Process of Removing Hydrogen Sulfide from Gas Mixtures
Patent:
4,515,759 →
Application:
06/549,274 →
Related Assignments
(4)
Other recorded transfers of the patent 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.
Nov 2, 1992
From: NL INDUSTRIES, INC.
To: EXXON CHEMICAL PATENTS, INC.
Reel/Frame 006372/0248 →
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 →