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	Hannover Wedemark

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Bernd-Georg Pietras - Patents

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Recent bibliographic sampling of Bernd-Georg Pietras patents listed/published in the public domain by the USPTO (USPTO Patent Application #,Title): ...

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WEATHERFORD/LAMB, INC., Wedemark, DE

Dokumente zum Namen

REMOTELY OPERATED SINGLE JOINT ELEVATOR - PIETRAS BERND-GEORG

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A remotely operated joint elevator for use in handling a tubular is provided. The single joint elevator including a housing having an access opening configured...

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US A - Kelly valve Google Patents

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A valve adapted for installation at the lower end of a drilling kelly for closing the bore of the kelly when adding a section of drill pipe so that the...

US B2 - Method and apparatus for connecting tubulars using a...

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Publication number, US B2, US B2, US-B , US B2, US B2. Inventors, Bernd-Georg Pietras.

US B1 - Apparatus and method aligning tubulars

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In one aspect, an apparatus for aligning tubulars is provided, comprising at least one guide, a tong, and a backup unit, wherein the guide is arranged on...

etc.uspto.gov

Martin Liess, Seelze (DE); and Bernd-Georg Pietras, Wedemark (DE). Assigned to Weatherford/Lamb, Inc., Houston, TX (US). Filed by Weatherford/Lamb, Inc., ...

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Dokumente zum Namen

REMOTELY OPERATED SINGLE JOINT ELEVATOR - PIETRAS BERND-GEORG

Sonstiges

US A - Kelly valve Google Patents

US B2 - Method and apparatus for connecting tubulars using a...

US B1 - Apparatus and method aligning tubulars

Ex Parte Pietras et al - Page 1 - Patent Attorney Resources - Board...

Hegering Wedemark ehrt langjährige Mitglieder - Wedemark

METHOD AND APPARATUS FOR CONNECTING TUBULARS USING A TOP DRIVE -...

Reissue Application Notice - OG Date: 28 September 2004