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ROLL RITE CORP

Overview
  • Total Patents
    21
About

ROLL RITE CORP has a total of 21 patent applications. Its first patent ever was published in 1946. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets transport, machines and packaging and shipping are HAMMER CASTER KK, WELDWHEELS and GLOBAL CASTORS LTD.

Patent filings in countries

World map showing ROLL RITE CORPs patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 1
#3 United Kingdom 1

Patent filings per year

Chart showing ROLL RITE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Christensen Carl O 18
#2 Christensen C 1
#3 Christensen Carl Oliver 1
#4 Lapham Sidney D 1

Latest patents

Publication Filing date Title
US4280246A Self-steering caster
US4074407A Method for making a hollow-bodied caster wheel
US4097954A Flutter-resistant caster
US4029333A Double ended warehouse trailer
US3944258A Double ended warehouse trailer
US3924292A Anti-flutter caster
US3805981A System for towing and operating a fork-lift trailer
US3881206A Loading ramp adapted to bridge a pair of platforms
US3547459A High capacity caster
US3433500A Universal caster
US3238548A Self-locking ramp
GB814987A Wheel construction
US2878759A Blower drive wheel for railroad refrigerator cars
US2768862A Wheel construction
US2788220A Pallet dolly
US2671488A Wheel
US2647277A Wheel and mounting assembly
US2589342A Lift truck accessory
US2563919A Container truck with selective ground engaging auxiliary wheels
US2461678A Loading ramp