Hahn; Detlef

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hahn; Detlef.The latest application filed is for "oscillating shear valve for mud pulse telemetry and operation thereof".

Company Profile

0.23.23

Hahn; Detlef - Hannover LS DE
Hahn; Detlef - Lunen DE
Hahn; Detlef - Hannover DE
Hahn, Detlef - Hanover 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
Oscillating Shear Valve For Mud Pulse Telemetry And Operation Thereof App 20210189873 - Peters; Volker ; et al.	2021-06-24
Force measuring unit and system for measuring chain forces Grant 9,809,389 - Pauli , et al. November 7, 2	2017-11-07
Force Measuring Unit And System For Measuring Chain Forces App 20160304286 - PAULI; Simon ; et al.	2016-10-20
Face conveyor for extraction plants and trough element for said face conveyor Grant 9,156,621 - Padberg , et al. October 13, 2	2015-10-13
Shield canopy for a shield-type support Grant 9,109,445 - Dehmel , et al. August 18, 2	2015-08-18
Method for determining the position or location of plant components in mining extracting plants and extracting plant Grant 8,998,343 - Ahler , et al. April 7, 2	2015-04-07
Face Conveyor For Extraction Plants And Trough Element For Said Face Conveyor App 20130319826 - Padberg; Hendrik ; et al.	2013-12-05
Method For Determining The Position Or Location Of Plant Components In Mining Extracting Plants And Extracting Plant App 20120319453 - Ahler; Marco ; et al.	2012-12-20
Shield Canopy For A Shield-type Support App 20120230775 - Dehmel; Dennis ; et al.	2012-09-13
Shield cap for a shield-type mining support Grant 8,215,876 - Onsori , et al. July 10, 2	2012-07-10
Downlink pulser for mud pulse telemetry Grant 8,174,404 - Hahn , et al. May 8, 2	2012-05-08
Active bottomhole pressure control with liner drilling and completion systems Grant 8,011,450 - Krueger , et al. September 6, 2	2011-09-06
Shield Cap For A Shield-type Mining Support App 20110142551 - Onsori; Siamak ; et al.	2011-06-16
Oscillating shear valve for mud pulse telemetry Grant 7,808,859 - Hahn , et al. October 5, 2	2010-10-05
Arrangement for extracting extraction products in underground extraction operations in caving Grant 7,779,984 - Martin , et al. August 24, 2	2010-08-24
Arrangement for extracting extraction products in Underground extraction operations in caving App 20090255783 - Martin; Harry ; et al.	2009-10-15
Reciprocating pulser for mud pulse telemetry Grant 7,417,920 - Hahn , et al. August 26, 2	2008-08-26
Method and device for extracting extraction products in underground mining Grant 7,350,874 - Bruggemann , et al. April 1, 2	2008-04-01
Oscillating Shear Valve For Mud Pulse Telemetry App 20080068929 - Hahn; Detlef ; et al.	2008-03-20
Downlink Pulser for Mud Pulse Telemetry App 20080055110 - Hahn; Detlef ; et al.	2008-03-06
Neutron source for well logging App 20070241275 - Guo; Pingjun ; et al.	2007-10-18
Oscillating shear valve for mud pulse telemetry Grant 7,280,432 - Hahn , et al. October 9, 2	2007-10-09
Downlink pulser for mud pulse telemetry Grant 7,250,873 - Hahn , et al. July 31, 2	2007-07-31
Active buttonhole pressure control with liner drilling and completion systems App 20070068704 - Krueger; Sven ; et al.	2007-03-29
Method and device for extracting extraction products in underground mining App 20060208555 - Bruggemann; Reinhold ; et al.	2006-09-21
Oscillating shear valve for mud pulse telemetry App 20060118334 - Hahn; Detlef ; et al.	2006-06-08
Oscillating shear valve for mud pulse telemetry and associated methods of use Grant 6,975,244 - Hahn , et al. December 13, 2	2005-12-13
Reciprocating pulser for mud pulse telemetry App 20050260089 - Hahn, Detlef ; et al.	2005-11-24
Hydraulically balanced reciprocating pulser valve for mud pulse telemetry Grant 6,898,150 - Hahn , et al. May 24, 2	2005-05-24
Toggle retainer for toggle connections Grant 6,872,025 - Hahn , et al. March 29, 2	2005-03-29
Method for generating pressure fluctuations in a flowing fluid App 20040069535 - Hahn, Detlef ; et al.	2004-04-15
Downlink pulser for mud pulse telemetry App 20040012500 - Hahn, Detlef ; et al.	2004-01-22
Oscillating shear valve for mud pulse telemetry Grant 6,626,253 - Hahn , et al. September 30, 2	2003-09-30
Toggle retainer for toggle connections App 20030118425 - Hahn, Detlef ; et al.	2003-06-26
Oscillating shear valve for mud pulse telemetry App 20030056985 - Hahn, Detlef ; et al.	2003-03-27
Apparatus and method for simultaneous drilling and casing wellbores App 20030056991 - Hahn, Detlef ; et al.	2003-03-27
System and methods for detecting pressure signals generated by a downhole actuator App 20030026167 - Hahn, Detlef ; et al.	2003-02-06
Hydraulically balanced reciprocating pulser valve for mud pulse telemetry App 20020159333 - Hahn, Detlef ; et al.	2002-10-31
Oscillating shear valve for mud pulse telemetry App 20020117306 - Hahn, Detlef ; et al.	2002-08-29
Apparatus and method for simultaneous drilling and casing wellbores Grant 6,419,033 - Hahn , et al. July 16, 2	2002-07-16
Method and apparatus for drilling boreholes in earth formations (drilling liner systems) Grant 6,196,336 - Fincher , et al. March 6, 2	2001-03-06
Channel sections for scraper-chain conveyors Grant 5,224,582 - Hahn , et al. July 6, 1	1993-07-06

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