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HASHA MALVERN M

Overview
  • Total Patents
    18
About

HASHA MALVERN M has a total of 18 patent applications. Its first patent ever was published in 1962. It filed its patents most often in United States, Canada and Mexico. Its main competitors in its focus markets measurement, civil engineering and mechanical elements are DAMCO TESTERS INC, INNOVATIVE PRESSURE TESTING LLC and ENGIP LLC.

Patent filings in countries

World map showing HASHA MALVERN Ms patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 5
#3 Mexico 1

Patent filings per year

Chart showing HASHA MALVERN Ms patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hasha Malvern M 18
#2 Hasha Brian B 4
#3 Hasha Bruce B 1

Latest patents

Publication Filing date Title
US5209105A Method and apparatus for externally and internally testing for leaks in connections between tubular members
US4407171A Apparatus and method for hydrostatically testing sealing face surfaces of tubular joints
CA1055275A Leak testing method and apparatus for tubular members and packer means therefor
US4152926A Method and apparatus for testing the connections between pipe segments
US4010633A Annular seal
CA1047277A Leak testing method and apparatus for tubular members and packer means therefor
US4132111A Leak testing method and apparatus for tubular members packer means therefor
CA988326A Method of externally testing connections between tubular members
CA959290A Method of stage internal pressure testing connections between tubular members
US3871209A Method of externally testing connections between tubular members
US3355189A Safety joint
US3282339A Arrangement for connecting a tubular member in a well string
US3144085A Power spinner unit for well swivels
US3196950A Well tool
US3212578A Method of connecting tubular members in a well string