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S M M H CORP

Overview
  • Total Patents
    14
About

S M M H CORP has a total of 14 patent applications. Its first patent ever was published in 1928. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets optics are MOVIECAM KINEMATOGRAPH, JEAN DE MONTREMY and LOUIS JOSEPH EMMANUEL COLARDEA.

Patent filings in countries

World map showing S M M H CORPs patent filings in countries
# Country Total Patents
#1 Canada 5
#2 United States 5
#3 United Kingdom 3
#4 France 1

Patent filings per year

Chart showing S M M H CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Cameras
#2 Optical systems

Top inventors

# Name Total Patents
#1 Holst Lodewyk J R 7
#2 Menefee Harry R 3
#3 Mayer William 3
#4 Holst Lodewyk Jan Rutger 2
#5 Helst Lodewyk J R 1
#6 Ray Menefce Harry 1
#7 William Mayer 1

Latest patents

Publication Filing date Title
GB482829A Improvements in and relating to continuous feed motion picture cameras
GB482828A Improvements in and relating to cinematograph apparatus
GB467487A Improved lens system
US2132003A Motion picture apparatus
US1974423A Motion picture projector
US2056966A Continuously moving film camera
US2055492A Method of and apparatus for taking motion pictures
US1928255A Apparatus for producing motion pictures
CA352528A Motion picture projector
CA370864A Motion picture taking apparatus
CA361158A Lens system
CA346550A Motion picture producing apparatus
CA370865A Moving film camera