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DEELY CARROLL L

Overview
  • Total Patents
    12
About

DEELY CARROLL L has a total of 12 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering are NORSE OILTOOLS AS, CHERNEJ EDUARD IVANOVICH and WANG JIANBAI.

Patent filings in countries

World map showing DEELY CARROLL Ls patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 3

Patent filings per year

Chart showing DEELY CARROLL Ls 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 Deely Carroll L 12

Latest patents

Publication Filing date Title
US3180439A Rotary, expansible bore hole reamers with improved safety features
US3127946A Drill bit
US3051255A Reamer
US3092192A Method of and apparatus for cutting, encasing and retrieving a core of earth formation from a well
US3038547A Drive extension for kelly joints for rotary drilling rigs
US2555580A Core barrel
US2606620A Fishing tool
US2490512A Core barrel
US2333847A Rotary drilling apparatus
CA678770A Drive extension for kelly joints for rotary drilling rigs
CA722509A Drill bit
CA678269A Reamer