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BARNES DRILL CO

Overview
  • Total Patents
    263
About

BARNES DRILL CO has a total of 263 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machine tools, chemical engineering and machines are CHEN MEIQING, NISSIN MFG CO LTD and QIU GUOLIN.

Patent filings in countries

World map showing BARNES DRILL COs patent filings in countries
# Country Total Patents
#1 United States 130
#2 United Kingdom 45
#3 Canada 40
#4 Germany 16
#5 France 15
#6 Switzerland 6
#7 Japan 6
#8 Sweden 2
#9 Brazil 1
#10 China 1
#11 Italy 1

Patent filings per year

Chart showing BARNES DRILL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Estabrook Mark R 43
#2 Johnson Albert M 37
#3 Caldwell Harry J 23
#4 Seborg Earnest Y 21
#5 Gross Maurice J 12
#6 Greenberg Donald K 10
#7 Fairbairn Walter M 7
#8 Fowler Leslie L 6
#9 Casson Kenneth H 6
#10 Klein James B 6

Latest patents

Publication Filing date Title
US5050352A Honing stone assembly
US4850382A Work booth for a robot
US4686035A Cylindrical drum magnetic separator
US4673502A Fixed filter drum and movable scraper
US4528776A Honing machine with stonewear compensator
US4421647A Filter with indexable filter web
US4110218A Liquid cleaning apparatus having cyclonic separators
US4062780A Vacuum filter with indexable filter web
US4199455A Combined magnetic and cyclonic separating apparatus
US4025433A Magnetic separating apparatus
US3844546A Clamping fixture for a tubular workpiece
US3840120A Apparatus for separating particles from liquid
US3918218A Filamentary cutting tool containing solid microparticles and method of making it
US3804256A Magnetic separator with improved squeegee roller
US3736703A Mechanism for expanding a honing tool
CA947514A Filamentary cutting tool and the method of making the same
US3777788A Cyclone separator
GB1276599A Solid abrading tool with fiber abrasive
US3972161A Solid abrading tool with fiber abrasive
US3557492A Clamping fixture for a machine tool