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MARINE OPTICAL MFG CO

Overview
  • Total Patents
    11
About

MARINE OPTICAL MFG CO has a total of 11 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States and Canada. Its main competitors in its focus markets optics and machines are COMOTEC SA, F A THIELE AS and CHEVASSUS SA.

Patent filings in countries

World map showing MARINE OPTICAL MFG COs patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 3

Patent filings per year

Chart showing MARINE OPTICAL MFG COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machines

Focus technologies

# Technology
#1 Spectacles
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Ditto Eugene D 3
#2 Ditto Arthur 2
#3 Arthur Ditto 2
#4 Ditto Eugene Dennis 1
#5 Dennis Ditto Eugene 1
#6 Ditto Hugo M 1
#7 Marto Nicholas R 1

Latest patents

Publication Filing date Title
US3241904A Ophthalmic mounting with hinge member connected to embedded base member
US2552411A Ophthalmic mounting
US2614459A Ophthalmic mounting
US2552410A Ophthalmic mounting
US2552409A Ophthalmic mounting
US2367389A Industrial goggles
US2370807A Industrial goggles
US2388635A Goggle
CA478346A Ophthalmic mountings
CA478345A Ophthalmic mountings
CA478344A Ophthalmic mountings