IP Library Assignment 005659/0532
Patent Assignment
Reel/Frame 005659/0532

Assignment of Assignors Interest.

Recorded: 1991-04-08 Pages: 2
Assignors
MC DOUGALL, LEE A.
Executed: 1990-06-14
WILLIAMS, DENNIS A.
Executed: 1990-06-14
Assignee
Covered Property (1)
Method of Improving Formation Permeability Using Chlorine Dioxide
Patent: 5,031,700 →
Application: 07/538,572 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 10, 1997
From: EXXON CHEMICAL PATENTS, INC.
To: NALCO/EXXON ENERGY CHEMICALS, LP
Reel/Frame 008376/0134 →