IP Library › Assignment 005654/0477
Patent Assignment
Reel/Frame 005654/0477

Assignment of Assignors Interest.

Recorded: 1991-03-26 Pages: 3
Assignor
GANGULI, KALYAN K.
Executed: 1991-03-14
Assignee
Covered Property (1)
Control of Gas Flow Through Cement Column
Patent: 5,099,922 →
Application: 07/675,309 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 19, 1995
From: WESTERN COMPANY OF NORTH AMERICA, THE
To: BJ SERVICES COMPANY, U.S.A.
Reel/Frame 007526/0440 →
Assignment of Assignor's Interest Oct 31, 2001
From: BJ SERVICES COMPANY, U.S.A.
To: BJ SERVICES COMPANY
Reel/Frame 012333/0812 →