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ROCKFORD DRILLING MACHINE CO

Overview
  • Total Patents
    25
About

ROCKFORD DRILLING MACHINE CO has a total of 25 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United States and Canada. Its main competitors in its focus markets mechanical elements, machines and machine tools are IPROTEC MASCH & EDELSTAHLPROD, KOPPY CORP and CYCLO INDEX CORP.

Patent filings in countries

World map showing ROCKFORD DRILLING MACHINE COs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 11

Patent filings per year

Chart showing ROCKFORD DRILLING MACHINE COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Machines
#3 Machine tools

Top inventors

# Name Total Patents
#1 Ruesenberg Carl A 11
#2 Hughes William F 5
#3 Carlson Raymond A 5
#4 Milne Robert 2
#5 Peterson Juel L 1
#6 Peterson Juel Leland 1

Latest patents

Publication Filing date Title
US1936032A Friction clutch
US1936031A Friction clutch
US1936030A Centrifugal clutch
US1921315A Clutch
US1937070A Clutch
US1948507A Spindle adjustment
US1968990A Hydraulically indexed machine tool
US1923438A Friction clutch
US1937083A Friction clutch
US1788806A Friction clutch
US1994463A Automatic feed control mechanism
US1753085A Clutch
US1008181A Change-speed mechanism.
US1026595A Feeding attachment for drill-spindles.
CA341170A Spindle adjustment
CA343815A Clutch
CA343816A Centrifugal clutch
CA341169A Clutch
CA314872A Friction clutch
CA298412A Friction clutch