Wenzel Downhole Tools Ltd (WZL) - was Master Downhole Message Board

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Gold/Mining/Energy : Wenzel Downhole Tools Ltd (WZL) - was Master Downhole

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To: StockPro who wrote (31)	4/25/1998 4:43:00 PM
From: Robert Raymond	Read Replies (1) of 104

To all: The following appeared in today's Financial Post: Two oil and gas service firms are in a patent battle over drilling tools used in the oilpatch and by utilities. Wenzel Downhole Tools Ltd. of Calgary is suing NQL Drilling Tools Inc. of Nisku, Alberta and its subsidiaries for patent infringement. Filed with the Federal Court of Canada, the lawsuit asks for $25 million in damages and an injunction preventing NQL Drilling from future violations. Chief executive officer Bill Wenzel said the case revolves around his patented bearing pack for "mud" motors - these are inserted in a horizontal or directional well to power the drill bit and driven by the drilling fluid, which is commonly called mud. The design is shorter, can take higher loads and reduces the number of bearings required, he said. The company received patents for both Canada and the U.S. in the early 990's. NQL denies it infringed Wenzel's patents. All of our motors have their own patent. Every single motor that;s in the field has patents that have been duly approved in the U.S. and Canada," said chairman Walter Stelmaschuk. end of article regards Robert Raymond

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