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WENZEL KENNETH H

Overview
  • Total Patents
    27
About

WENZEL KENNETH H has a total of 27 patent applications. Its first patent ever was published in 1978. It filed its patents most often in Canada, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering, mechanical elements and machines are COILED TUBING RENTAL TOOLS INC, TURBO DRILL IND INC and ANADRILL INC.

Patent filings in countries

World map showing WENZEL KENNETH Hs patent filings in countries
# Country Total Patents
#1 Canada 14
#2 United States 12
#3 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing WENZEL KENNETH Hs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Mechanical elements
#3 Machines

Top inventors

# Name Total Patents
#1 Wenzel Kenneth H 27
#2 Foote Dean 2

Latest patents

Publication Filing date Title
US2014131112A1 Apparatus for keeping a downhole drilling tool vertically aligned
US2013004105A1 Bearing assembly
US2013004106A1 Diamond bearing assembly
CA2724161A1 Dump valve
CA2668469A1 A method of fabricating a drive shaft for earth drilling motor and a drive shaft fabricated in accordance with the method
CA2655593A1 Bearing assembly for use in earth drilling
CA2541541A1 Apparatus for keeping a down hole drilling tool vertically aligned
CA2068608A1 A downhole bearing assembly
CA2068605A1 A downhole bearing assembly
CA2056043A1 Flow restrictor for mud lubricated earth drilling motors
US5217080A Sealing system for a sealed bearing assembly
US5123493A Valve used in a hydraulic drilling jar
CA2031607A1 Method of sealing a pressure drop across a drill bit in rotary applications
CA2008417A1 Orientable adjustable bent sub
US4813497A Adjustable bent sub
US4745982A Adjustable bent sub
US4772246A Downhole motor drive shaft universal joint assembly
CA1243663A Adjustable bent sub
US4230197A Bumping and jarring tool
CA1226274A Shock absorbing tool for a well drilling string