IP Library › Assignment 026606/0504
Patent Assignment
Reel/Frame 026606/0504

Assignment of Assignor's Interest

Recorded: 2011-07-18 Pages: 6
Assignors
COLEMAN, DENNIS D.
Executed: 2011-06-06
COLEMAN, TODD M.
Executed: 2011-06-06
Assignee
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH
ALPENSTRASSE 15, ZUG (6304), SWITZERLAND
Covered Property (1)
Gas Sampling Apparatus
Patent: 7,647,846 →
Application: 10/257,514 →
Publication: US 2004/0123679
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Intellectual Property Assignment May 17, 2019
From: WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH
To: STRATUM RESERVOIR (UK) HOLDINGS, LTD.
Reel/Frame 049219/0261 →
Assignment of Assignor's Interest Sep 5, 2023
From: STRATUM RESERVOIR (UK) HOLDINGS LTD.
To: STRATUM RESERVOIR (ISOTECH), LLC
Reel/Frame 064793/0558 →