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ROBERTS FRED T

Overview
  • Total Patents
    35
About

ROBERTS FRED T has a total of 35 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, mechanical elements and furniture and games are FRED T ROBERTS & COMPANY, REVERE RUBBER CO and MAX DRAEMANN.

Patent filings in countries

World map showing ROBERTS FRED Ts patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 16

Patent filings per year

Chart showing ROBERTS FRED Ts patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roberts Fred T 35
#2 Roberts Robert E 18
#3 Roberts Robert Eldon 1

Latest patents

Publication Filing date Title
US3028291A Method of making spirally corrugated reinforced flexible hose
US3028276A Method of making a reinforced flexible hose having internal and external corrugations
US3028290A Method and apparatus for forming a reinforced corrugated hose
US3015599A Method of making reinforced corrugated hose
US3028289A Method of making flexible reinforced corrugated hose
US2897840A Hose and method of making same
US2830622A Hose and method of making same
US2897839A Hose
US3021245A Method of making a reinforced corrugated hose
US2837121A Flexible hose and method and apparatus for making same
US2848015A Reenforced hose and method of making same
US2817129A Hose clamp
US2780273A Method and apparatus for making a molded flexible hose
US2780274A Method of making flexible corrugated hose
US2767796A Fire extinguisher
US2489387A Apparatus for applying covers to balls
US2131756A Rubber ball
US992904A Filler for tires.
US1012161A Process for making fillers for tires.
CA471611A Methods and apparatus for covering balls