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PROPST ROBERT L

Overview
  • Total Patents
    28
About

PROPST ROBERT L has a total of 28 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets civil engineering, agriculture and furniture and games are INSCAPE CORP, SYKES CHRISTOPHER C and HAUSERMAN LTD.

Patent filings per year

Chart showing PROPST ROBERT Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Propst Robert L 28
#2 Beckman Ronald H 1

Latest patents

Publication Filing date Title
US5333423A Floor system
US5012625A Building enclosure system and method
US5069466A Cart assembly
US4899510A Building enclosure system and method
US4843868A Cement mix analyzing system
US4741201A Cement mix analyzing system
US4354539A System for pulpwood harvesting and delivery
US4273168A Apparatus and method for harvesting trees
CA1036046A Timber harvesting machine
US3685558A Apparatus for felling and bunching trees
US3707175A Method and apparatus for harvesting trees
US3674230A Furniture construction
US3620273A Tree harvesting apparatus
US3651845A Method and apparatus for converting trees into wood chips
US3280410A Multi-directional molded spring assembly
US3140736A Timber harvesting method and apparatus
US3044306A Power meter
CA837895A Timber harvesting method and apparatus