IP Library › Assignment 005206/0967
Patent Assignment
Reel/Frame 005206/0967

Merger Effective November 13, 1988, De.

Recorded: 1990-01-09 Pages: 12
Assignor
Assignee
Covered Property (1)
Seismic Source Vibrator Having Self Tuning Controller
Patent: 4,637,002 →
Application: 06/586,156 →
Related Assignments (9)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Mar 5, 1984
From: SALLAS, JOHN J.
To: TEXAS INSTRUMENTS INCORPORATED 13500 NORTH CENTRAL EXPRESSWAY DALLAS, TX 75265 A CORP. OF DE
Reel/Frame 004261/0376 →
Assignment of Assignors Interest. Mar 17, 1988
From: TEXAS INSTRUMENTS INCORPORATED
To: GEOPHYSICAL SERVICE, INC.
Reel/Frame 004866/0299 →
Merger Nov 15, 1993
From: HALLIBURTON GEOPHYSICAL SERVICES, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006777/0052 →
Merger Dec 15, 1993
From: GSI ACQ COMPANY; GEOPHYSICAL SERVICES, INC.
To: HALLIBURTON GEOPHYSICAL SERVICES, INC.
Reel/Frame 006817/0213 →
Merger Dec 15, 1993
From: HALLIBURTON LOGGING SERVICES, INC.; OTIS ENGINEERING CORPORATION; HALLIBURTON GEOPHYSICAL SERVICES, INC.; SIERRA GEOPHYSICS, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006817/0225 →
Assignment of Assignor's Interest Mar 28, 1994
From: HALLIBURTON COMPANY
To: WESTERN ATLAS INTERNATIONAL, INC.
Reel/Frame 006970/0236 →
Assignment of Assignor's Interest Aug 28, 1995
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS, INC.
Reel/Frame 007644/0138 →
Corrected Assignment Feb 23, 1996
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS (U.S.A), INC.
Reel/Frame 007815/0841 →
Assignment of Assignor's Interest Jun 8, 1998
From: I/O EXPLORATION PRODUCTS (U.S.A.), INC.
To: INPUT/OUTPUT, INC.
Reel/Frame 009245/0506 →