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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US52557519 Oct 199226 Oct 1993Oilfield make-up and breakout tool for top drive drilling systems
US613567016 Jul 199824 Oct 2000Polished rod clamp
US627013613 Jul 19997 Ago 2001Farr Canada Ltd.Tong for well pipe
US691586828 Nov 200012 Jul 2005Frank's Casing Crew and Rental Tools, Inc.Elevator apparatus and method for running well bore tubing
US742681326 Oct 200423 Sep 2008Wanda M. Weder and William F. StaeterFloral easel
US770780625 Abr 20084 May 2010Wanda M. Weder & William F. StraeterFloral easel
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US79180736 Oct 20085 Abr 2011Wanda M. Weder and William F. StraeterFloral easel
US79587027 Oct 200814 Jun 2011Wanda M. Weder and William F. StraeterFloral easel
US801142614 Feb 20096 Sep 2011T&T Engineering Services, Inc.Method of gripping a tubular with a tubular gripping mechanism
US809132429 Mar 201010 Ene 2012Wanda M. Weder and William F. StraeterFloral easel
US81226911 Mar 201128 Feb 2012Wanda M. Weder
William F. Straeter
Floral easel
US812833227 Oct 20086 Mar 2012T & T Engineering Services, Inc.Header structure for a pipe handling apparatus
US816171730 Sep 201024 Abr 2012Wanda M. Weder and William F. StraeterFloral easel
US819212820 May 20095 Jun 2012T&T Engineering Services, Inc.Alignment apparatus and method for a boom of a pipe handling system
US819212927 May 20105 Jun 2012T&T Engineering Services, Inc.Pipe handling boom pretensioning apparatus