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ROYER FOUNDRY & MACHINE CO

Overview
  • Total Patents
    13
About

ROYER FOUNDRY & MACHINE CO has a total of 13 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States, Germany and France. Its main competitors in its focus markets materials and metallurgy, machines and packaging and shipping are ROYER FOUNDRY AND MACHINE COMP, NICHOLLS WILLIAM H and DEPENDABLE FORDATH INC.

Patent filings in countries

World map showing ROYER FOUNDRY & MACHINE COs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Germany 1
#3 France 1
#4 United Kingdom 1

Patent filings per year

Chart showing ROYER FOUNDRY & MACHINE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Royer George F 6
#2 Broersma Robert J 3
#3 Suits Scott O 1
#4 Cooper Rutherford L 1

Latest patents

Publication Filing date Title
US3554499A Sand aerating device
US3455084A Nursery stock packing device
US3450036A Half shell
US3469366A Packaging device having a fixed center,sliding split cover
US2020800A Screening apparatus
US1729361A Apparatus for preparing molder's sand
US1694356A Sand collecting and treating machine
US1713449A Sand separating and blending means
US1559916A Separator for granular material
US1559915A Method of and apparatus for separating and blending molders' sand