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HALL JOHN R

Overview
  • Total Patents
    13
About

HALL JOHN R has a total of 13 patent applications. Its first patent ever was published in 1956. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets transport, machines and audio-visual technology are LIN WEN-TSAN, LIAO GORDON and DG MFG LLC.

Patent filings per year

Chart showing HALL JOHN Rs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hall John R 13
#2 Epps Charles R 1

Latest patents

Publication Filing date Title
US5593271B1 Convertible barrow for ground level loading
US5211400A Golf putting aid
US4901877A Bee proof beverage container
US3434294A Method and apparatus for forming concrete piles
US3358540A Vinyl wall covering cutter
US3143689A Magnetic recording tape erasure apparatus
US2811052A Saw gullet angle indicator
CA550541A Saw gullet angle indicator