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MEGADIAMOND IND INC

Overview
  • Total Patents
    16
About

MEGADIAMOND IND INC has a total of 16 patent applications. Its first patent ever was published in 1983. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets civil engineering, machine tools and mechanical elements are COOLEY CRAIG H, TEEK MINING SOLUTIONS PTY LTD and TSUKAMOTO SEIKI KK.

Patent filings in countries

World map showing MEGADIAMOND IND INCs patent filings in countries
# Country Total Patents
#1 United States 7
#2 EPO (European Patent Office) 2
#3 Canada 1
#4 Germany 1
#5 France 1
#6 United Kingdom 1
#7 Italy 1
#8 Mexico 1
#9 South Africa 1

Patent filings per year

Chart showing MEGADIAMOND IND INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hall David R 11
#2 Horton M Duane 2
#3 David R Hall 1
#4 Hall David Richard 1
#5 Cerceau Jean-Michel 1
#6 Horton L Brent 1
#7 Hall Jr H Tracy 1

Latest patents

Publication Filing date Title
CA1254552A Bearing system for a roller cone rock bit
ZA8502536B Composite polycrystalline diamond
US4570726A Curved contact portion on engaging elements for rotary type drag bits
US4647546A Polycrystalline cubic boron nitride compact
US4627503A Multiple layer polycrystalline diamond compact
US4629373A Polycrystalline diamond body with enhanced surface irregularities
US4527643A Rotary cutting member for drilling holes
US4529048A Inserts having two components anchored together at a non-perpendicular angle of attachment for use in rotary type drag bits