Inventor
VEZIRIAN EDWARD
29 patents
⚠️ This page may combine multiple inventors who share the name “VEZIRIAN EDWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VEZIRIAN EDWARD
17 patentsUS8201646B2Jun 19, 2012
Method and apparatus for a true geometry, durable rotating drill bit
VEZIRIAN EDWARD22 citations92
US5040623AAug 20, 1991
Controlled true geometry rock bit with one piece body
VEZIRIAN EDWARD26 citations92
US4854368AAug 8, 1989
Lost foam casting method
VEZIRIAN EDWARD42 citations92
US4776599AOct 11, 1988
Dynamic packing ring seal system
VEZIRIAN EDWARD38 citations92
US4623027ANov 18, 1986
Unsegmented rotary rock bit structure and hydraulic fitting
VEZIRIAN EDWARD30 citations92
US4620803ANov 4, 1986
Friction bearing couple
VEZIRIAN EDWARD28 citations92
USD304514SNov 7, 1989
Communion cup
VEZIRIAN EDWARD41 citations90
US4703849ANov 3, 1987
Vending package
VEZIRIAN EDWARD36 citations90
US4819517AApr 11, 1989
Selected bearing couple for a rock bit journal and method for making same
VEZIRIAN EDWARD20 citations82
US4684015AAug 4, 1987
Vending package
VEZIRIAN EDWARD21 citations80
US5024539AJun 18, 1991
Friction bearing and cone retention thrust system for a rock bit
VEZIRIAN EDWARD9 citations74
US4744270AMay 17, 1988
Method for thermally fitting hard teeth in rock bits
VEZIRIAN EDWARD14 citations74
US4596472AJun 24, 1986
Thrust bearing and axial retainer system for rotary cone rock bits and method for assembling same
VEZIRIAN EDWARD11 citations74
US8439134B2May 14, 2013
Method and apparatus for a true geometry, durable rotating drill bit
VEZIRIAN EDWARD3 citations63
US4753706AJun 28, 1988
Method for chemically structuralizing telescopic joints
VEZIRIAN EDWARD6 citations63
US4643792AFeb 17, 1987
Method for chemically structuralizing telescopic joints
VEZIRIAN EDWARD6 citations63
US8601908B2Dec 10, 2013
Method and apparatus for a true geometry, durable rotating drill bit
VEZIRIAN EDWARD1 citations52
SMITH INTERNATIONAL
12 patentsUS4221270ASep 9, 1980
Drag bit
SMITH INTERNATIONAL135 citations96
US4145094AMar 20, 1979
Rotary rock bit and method of making same
SMITH INTERNATIONAL38 citations92
US4350060ASep 21, 1982
Method of making a rotary rock bit
SMITH INTERNATIONAL22 citations82
US3964605AJun 22, 1976
Protective container package for a rock drill bit assembly
SMITH INTERNATIONAL23 citations82
US4499642AFeb 19, 1985
Composite bearing
SMITH INTERNATIONAL21 citations78
US4325439AApr 20, 1982
Diamond insert stud for a drag bit
SMITH INTERNATIONAL16 citations74
US4266622AMay 12, 1981
Rotary rock bit and method of making same
SMITH INTERNATIONAL18 citations74
US4176724ADec 4, 1979
Rotary rock bit and method of making same
SMITH INTERNATIONAL14 citations74
US4168923ASep 25, 1979
Electron beam welding of carbide inserts
SMITH INTERNATIONAL16 citations74
US4506997AMar 26, 1985
Rock bit cone retention
SMITH INTERNATIONAL8 citations69
US4486104ADec 4, 1984
Composite bearing
SMITH INTERNATIONAL16 citations69
US4444518AApr 24, 1984
Rock bit cone retention means
SMITH INTERNATIONAL13 citations69