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MCLEOD RODERICK D

Overview
  • Total Patents
    28
About

MCLEOD RODERICK D has a total of 28 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Canada and United States. Its main competitors in its focus markets civil engineering are TOOLBOX DRILLING SOLUTIONS LTD, PROTON TECH INC and NORVIC SA.

Patent filings in countries

World map showing MCLEOD RODERICK Ds patent filings in countries
# Country Total Patents
#1 Canada 15
#2 United States 13

Patent filings per year

Chart showing MCLEOD RODERICK Ds patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Earth drilling

Top inventors

# Name Total Patents
#1 Mcleod Roderick D 28
#2 Roesch Albert 4
#3 Loree Dwight 1

Latest patents

Publication Filing date Title
CA2057219C Packoff nipple
CA2055656A1 Wellhead isolation tool and method of use thereof
CA1302235E High pressure adapter for wellheads
US5103900A High pressure adapter for well-heads
CA2017164A1 Fluid and abrasive delivery system for hyper pressure fluids
CA1281280C Annular and concentric flow wellhead isolation tool and method of use thereof
CA1292675C Wellhead isolation tool
CA1277230C Wellhead isolation tool
CA1290684C Back pressure plug tool
CA1292676C Well casing packers
CA1281997C Wellhead isolation tool
US5025857A Wellhead tubing and casing packer and installation and removal tool
CA1285864C Wellhead tubing and casing packer and installation and removal tool
CA1232536A Well casing packer
CA1217128A Wellhead isolation tool
CA1222204A Insertion drive system for tree savers
CA1169766A Nipple insert