Patent Assignment
Reel/Frame 043288/0189
Assignment of Assignor's Interest
Recorded: 2017-08-15
Pages: 8
Assignors
RINGER, MAURICE
Executed: 2017-07-10
LESSI, JACQUES
Executed: 2016-09-11
TOUSSAINT, CHARLES
Executed: 2016-09-13
Assignee
GEOSERVICES EQUIPEMENTS
127, AVENUE DU BOIS DE LA PIE, PARIS NORD II, ROISSY EN FRANCE, F-95700, FRANCE
Covered Property
(1)
Systems and Methods for Determining and/or Using Estimate of Drilling Efficiency
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.