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DAILEY PETROLEUM SERVICES

Overview
  • Total Patents
    80
About

DAILEY PETROLEUM SERVICES has a total of 80 patent applications. Its first patent ever was published in 1983. It filed its patents most often in Australia, EPO (European Patent Office) and United States. Its main competitors in its focus markets civil engineering, mechanical elements and machines are JOHN GRANT, REED EARL A and SECURITY ENGINEERING CO INC.

Patent filings per year

Chart showing DAILEY PETROLEUM SERVICESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Beasley Thomas R 23
#2 Evans Robert W 22
#3 Anders Edward O 13
#4 Teng Chuan C 10
#5 Teng Chuan Chin 7
#6 Mccomsey Lee E 6
#7 Chapelle Rene A 6
#8 Blacklaws John E 6
#9 Danny S Sebastian 2
#10 Thomas R Beasley 2

Latest patents

Publication Filing date Title
AU4898697A Constant bottom contact thruster
US5669457A Drill string orienting tool
US5624001A Mechanical-hydraulic double-acting drilling jar
WO9416846A1 Open lathe spider tool
CA2053683A1 Apparatus for preventing separation of a down-hole motor from a drill string
AU8468091A Combination thrust and radial bearing for use in down-hole drilling tools
US5086853A Large bore hydraulic drilling jar
US4844183A Accelerator for fishing jar with hydrostatic assist
CA1281025C Mechanical directional drilling jar
US4630690A Spiralling tapered slip-on drill string stabilizer
US4573536A Method and apparatus for flushing a well
AU3409784A Wear protector
US4600062A Shock absorbing drilling tool
US4600063A Double-taper slip-on drill string stabilizer
US4508182A Method and apparatus for controlling azimuthal drift of a drill bit
US4498548A Well jar incorporating elongate resilient vibration snubbers and mounting apparatus therefor
US4526241A Adjustable length drilling sub