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PARKS & WOOLSON MACHINE CO

Overview
  • Total Patents
    69
About

PARKS & WOOLSON MACHINE CO has a total of 69 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United States, Switzerland and Germany. Its main competitors in its focus markets chemical engineering, textiles and paper and machines are WINSOR & JERAULD MFG COMPANY, C H WEISBACH KOMM GES and SISTIG KG LEO.

Patent filings in countries

World map showing PARKS & WOOLSON MACHINE COs patent filings in countries
# Country Total Patents
#1 United States 65
#2 Switzerland 2
#3 Germany 1
#4 France 1

Patent filings per year

Chart showing PARKS & WOOLSON MACHINE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Richardson Charles G 40
#2 Hadley Wilfred N 14
#3 Holm William J 6
#4 Hogue John W 4
#5 Burr Harold E 1
#6 Gardner Joseph M 1
#7 Nourse Hadley Wilfred 1
#8 William J Holm 1
#9 Antonovich Willis J 1
#10 Wilfred Nourse Hadley 1

Latest patents

Publication Filing date Title
US6141842A Dynamic zoning assembly in a napper machine
US3438139A Apparatus for setting fabric
US3409955A Apparatus for cutting loops on the edge of a running cloth web
US3400624A Apparatus for edge trimming fabrics
US3327366A Apparatus for shearing fabrics
US3380130A Oscillating shearing apparatus
US3333498A Rotary fabric shearing cutter
US3229346A Apparatus for sueding sheet fabrics
US2749593A Fabric napping mechanism
US2716797A Fabric napping apparatus
US2730113A Fabric carbon duster and method
US2707815A Napping machine
US2754565A Burling machine and method
US2606355A Rotary shearing member
US2594919A Selvage loop cutting mechanism
US2594918A Selvage finishing mechanism
US2624963A Textile treating machine
US2472584A Napping machine
US2498416A Method of decating fabrics
US2448686A Loop cutting mechanism