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R A HANSON COMPANY INC

Overview
  • Total Patents
    11
About

R A HANSON COMPANY INC has a total of 11 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and chemical engineering are WAIN CO ROY, EPHEMERE PTY LTD and SONERUDS MASKIN AB.

Patent filings in countries

World map showing R A HANSON COMPANY INCs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 1

Patent filings per year

Chart showing R A HANSON COMPANY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hanson Raymond A 6
#2 Walker Robert D 2
#3 Steele Thomas W 2
#4 Peterson Randy S 2
#5 Crockett Wayne F 2
#6 Kaschmitter Gerald 1
#7 Bird Robert L 1
#8 Morton Jerry 1
#9 Russell Matthew F 1
#10 Kanenwischer Bryon M 1

Latest patents

Publication Filing date Title
US6185847B1 Continuous shovel
US5749452A Mobile conveyor including alignment system
US5590482A Excavator and earthen material excavator bucket apparatus
US5415586A Combine harvester leveling system, combine harvester header adjusting system, and pivoting chain drive system
US5203461A Mineral jig apparatus
US4871213A Excavating apparatus with adjustable breaker bar
US4999934A Dredging apparatus
US4858347A Continuous excavating apparatus and methods
US4849097A Cam actuated mineral jig
US4785560A Continuous excavating apparatus