Zaeper; Ralf

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zaeper; Ralf.The latest application filed is for "device and method for predictive calibration".

Company Profile

0.5.9

Zaeper; Ralf - Hannover DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Device And Method For Predictive Calibration App 20140019052 - Zaeper; Ralf ; et al.	2014-01-16
System and method to locate, monitor and quantify friction between a drillstring and a wellbore Grant 8,600,679 - Zaeper , et al. December 3, 2	2013-12-03
Bidirectional telemetry apparatus and methods for wellbore operations Grant 8,248,266 - Macpherson , et al. August 21, 2	2012-08-21
Downhole washout detection system and method Grant 7,694,558 - Zaeper , et al. April 13, 2	2010-04-13
Control Of Downhole Devices In A Wellbore App 20090250225 - Zaeper; Ralf ; et al.	2009-10-08
System And Method To Locate, Monitor And Quantify Friction Between A Drillstring And A Wellbore App 20090216453 - Zaeper; Ralf ; et al.	2009-08-27
Downhole Measurement While Drilling System And Method App 20090207041 - Zaeper; Ralf ; et al.	2009-08-20
Downhole Washout Detection System And Method App 20090200079 - Zaeper; Ralf ; et al.	2009-08-13
Apparatus And Method For Communicating Information Between A Wellbore And Surface App 20090120689 - Zaeper; Ralf ; et al.	2009-05-14
Bidirectional Telemetry Apparatus And Methods For Wellbore Operations App 20090115623 - Macpherson; John D. ; et al.	2009-05-07
Bidirectional telemetry apparatus and methods for wellbore operations Grant 7,477,161 - Macpherson , et al. January 13, 2	2009-01-13
Bidirectional telemetry apparatus and methods for wellbore operations App 20060290528 - MacPherson; John D. ; et al.	2006-12-28

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