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Smith International Inc

Smith Inte

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US4397355A	Whipstock setting method and apparatus	Expired / Lapsed	1981-05-29	1983-08-09	8	Details
US4359335A	Method of fabrication of rock bit inserts of tungsten carbi…	Expired / Lapsed	1980-06-05	1982-11-16	3	Details
US4303137A	Method for making a cone for a rock bit and product	Expired / Lapsed	1979-09-21	1981-12-01	24	Details
US4168923A	Electron beam welding of carbide inserts	Expired / Lapsed	1977-10-21	1979-09-25	20	Details