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POLK DEV COMPANY

Overview
  • Total Patents
    34
About

POLK DEV COMPANY has a total of 34 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United States. Its main competitors in its focus markets agriculture, furniture and games and machines are ZUMMO INNOVACIONES MECANICAS S A, MAQUINAS & ELEMENTOS SA and MACHF FINIS NV.

Patent filings in countries

World map showing POLK DEV COMPANYs patent filings in countries
# Country Total Patents
#1 United States 34

Patent filings per year

Chart showing POLK DEV COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Polk Sr Ralph 32
#2 Polk Jr Ralph 30
#3 Fix Oral S 1

Latest patents

Publication Filing date Title
US2627884A Apparatus for the support and sectionizing of citrus fruit
US2634893A Apparatus for filling cans
US2607381A Method of sectionizing citrus fruits
US2552733A Apparatus for holding citrus fruit
US2560128A Apparatus for sectionizing citrus fruit
US2558579A Apparatus for sectionizing citrus fruit
US2543932A Treatment of citrus fruit to facilitate peeling
US2489195A Method and apparatus for sectionizing citrus fruit
US2562818A Fruit peeling apparatus
US2570071A Apparatus for peeling fruit
US2538591A Fruit handling method and apparatus
US2551156A Fruit peeling method and apparatus
US2549333A Method for sectionizing citrus fruits
US2533139A Citrus fruit juicer
US2538590A Citrus fruit juicer
US2402181A Method and means for treating fruits having pits
US2313714A Holding fork for citrus fruits
US2312283A Holding fork for citrus fruits
US2319120A Apparatus for segmenting and pitting fruits having pits
US2378101A Method and means for treating fruit having a pit