IP Library › Assignment 019371/0861
Patent Assignment
Reel/Frame 019371/0861

Assignment of Assignor's Interest

Recorded: 2007-06-03 Pages: 3
Assignor
DEWARRAT, RODOLPHE
Executed: 2007-05-25
Assignee
SPECTRASEIS AG
GIESSEREISTRASSE 5, ZURICH, CH-8005, SWITZERLAND
Covered Property (1)
Frequency Autonormalisation Reservoir Mapping
Patent: 7,729,862 →
Application: 11/751,659 →
Publication: US 2007/0299614
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger and Change of Name Jan 18, 2017
From: SPECTRASEIS AG; BTG ECLEPENS SA
To: BTG ECLEPENS SA
Reel/Frame 041391/0275 →
Assignment of Assignor's Interest Nov 27, 2019
From: BTG ECLÉPENS SA
To: SPECTRASEIS INC.
Reel/Frame 051129/0457 →