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ROCK ISLAND MILLWORK COMPANY

Overview
  • Total Patents
    16
About

ROCK ISLAND MILLWORK COMPANY has a total of 16 patent applications. Its first patent ever was published in 1945. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machine tools, machines and civil engineering are GRAU HANS, CMP SPA and FLAKEBOARD COMPANY LTD.

Patent filings in countries

World map showing ROCK ISLAND MILLWORK COMPANYs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 7

Patent filings per year

Chart showing ROCK ISLAND MILLWORK COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Frederick Weyerhaeuser 5
#2 Weyerhaeuser Frederick 5
#3 Rundquist Willard H 3
#4 Fuller Frank W 2
#5 Dowling Arthur P 1

Latest patents

Publication Filing date Title
US2668322A Loading apparatus and method
US2695426A Hot-pressing process
US2660051A Device for testing hot flow
US2661511A Built-up wood panel
US2574915A Molding tray
US2579527A Method and means for loading dry granular mixtures
US2583618A Production of hot-molded articles from wood sawdust
US2576539A Window construction
US2479870A Hollow-core panel
CA525946A Production of hot-molded articles from wood sawdust
CA525678A Hot-pressing method
CA519782A Hot-pressing process and product
CA525679A Loading apparatus and method
CA519512A Method and means for loading dry granular mixtures
CA498877A Molding tray
CA466585A Hollow-core panel