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SCHULTZ ROGER L

Overview
  • Total Patents
    57
About

SCHULTZ ROGER L has a total of 57 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and mechanical elements are SALVESEN DRILLING SERVICES, MACCO OIL TOOL CO INC and EARTH TOOL CORP.

Patent filings in countries

World map showing SCHULTZ ROGER Ls patent filings in countries
# Country Total Patents
#1 United States 43
#2 Canada 14

Patent filings per year

Chart showing SCHULTZ ROGER Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schultz Roger L 57
#2 Cavender Travis W 14
#3 Ferguson Andrew M 11
#4 Connell Michael L 10
#5 Pipkin Robert 7
#6 Watson Brock 6
#7 East Loyd E 5
#8 Walters Harold G 5
#9 Skinner Neal G 5
#10 Pipkin Robert L 5

Latest patents

Publication Filing date Title
US8528423B1 Portable torque measurement and notification system and method of using same
US8549932B1 Portable torque measurement and notification system and method of using same
US8459365B1 Apparatus for creating bidirectional rotary force or motion in a downhole device and method for using same
US8413525B1 Portable torque measurement and notification system and method of using same
US2013319655A1 Downhole safety joint
US8424605B1 Methods and devices for casing and cementing well bores
US2012291539A1 Vortex controlled variable flow resistance device and related tools and methods
US2013048274A1 Variable frequency fluid oscillators for use with a subterranean well
US2013042699A1 Fluidic oscillator flowmeter for use with a subterranean well
US2012292015A1 Vortex controlled variable flow resistance device and related tools and methods
US2012227970A1 Jarring method and apparatus using fluid pressure to reset jar
US2012168013A1 Conical fluidic oscillator inserts for use with a subterranean well
US2012167994A1 Fluidic oscillators for use with a subterranean well
US2012168015A1 Cone and plate fluidic oscillator inserts for use with a subterranean well
US2012168014A1 Cross-flow fluidic oscillators for use with a subterranean well
US2012145397A1 Geothermal energy production
US2012145398A1 Controlling flow of steam into and/or out of a wellbore
US2012145404A1 Controlling flow between a wellbore and an earth formation
US2012145399A1 Restricting production of gas or gas condensate into a wellbore
US2011170844A1 Steam generator