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GRANT WALDREF

Overview
  • Total Patents
    14
About

GRANT WALDREF has a total of 14 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets transport, mechanical elements and machine tools are LOHR SA, OSTERMEYER BERND and COPONY AUTO LOADING COMPANY.

Patent filings in countries

World map showing GRANT WALDREFs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 3
#3 France 1
#4 United Kingdom 1

Patent filings per year

Chart showing GRANT WALDREFs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Martin Melvin S 3
#2 Mason Charles E 3
#3 Swartout Martin Melvin 1
#4 Waldref Grant 1
#5 Romans Edgar D 1
#6 Anderson Alpert S 1
#7 Riach Henry J 1
#8 Anderson Albert S 1
#9 Wood Garfield A 1

Latest patents

Publication Filing date Title
US1536960A Hoisting mechanism for tilting bodies of dump vehicles
US1639812A Power take-off device
US1536959A Hoist for vehicle dump bodies
US1417691A Manifold bracket
GB162047A Improvements in mechanism for tipping the bodies of vehicles
US1345616A Manifold-bracket for hydraulic hoists
US1384421A Hydraulic ram
US1345327A Shifter-shoe for clutches
US1289596A Hydraulic unloader.
US1165825A Hydraulic dump.
CA250408A Hoist for vehicle dump bodies
CA222047A Shifter shoe for clutches
CA250407A Hoisting mechanism for tilting bodies of dump vehicles