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FOUR D INC

Overview
  • Total Patents
    16
About

FOUR D INC has a total of 16 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets transport, control and medical technology are EVEQUOZ JEAN YVES, YE QIU and NANTONG ANT MACHINERY CO LTD.

Patent filings per year

Chart showing FOUR D INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Reiland Mary J 16
#2 Reiland Kenneth H 11
#3 Lehse David 5
#4 Herold Ronald J 2
#5 Lehse David J 1
#6 Darst John M 1

Latest patents

Publication Filing date Title
AU5118301A Passenger carrier that nests with a cart basket
AU9235798A Shopping cart with internal seat
US6237924B1 Shopping cart with internal seat
CA2190088A1 Child carrier accessory attachable to a shopping or luggace cart
US5640816A Freestanding modular changing room system
US5255817A System and method for low cost dispensing of soft packaged articles
US5016778A System for low cost dispensing of soft packaged articles