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MAYER ALVIN L

Overview
  • Total Patents
    14
About

MAYER ALVIN L has a total of 14 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States and Canada. Its main competitors in its focus markets optics and machines are JACQUES BOLSEY, MASCHB ING H STEGENWALNER K G and THIRD DIMENSION PICTURES INC.

Patent filings in countries

World map showing MAYER ALVIN Ls patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 3

Patent filings per year

Chart showing MAYER ALVIN Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machines

Top inventors

# Name Total Patents
#1 Mayer Alvin L 14

Latest patents

Publication Filing date Title
US2404138A Apparatus for developing exposed photographic prints
US2331335A Means for toning photographic prints
US2335189A Photograph printer
US2326959A Shutter control mechanism for photographic printers
US2107867A Printing enlarging machine
US2009053A Camera
US1966556A Camera shutter
US1744323A Photographic-printing apparatus
US1500025A Lantern slide
US1515129A Glass-cutting machine
US1524797A Lantern slide
CA246059A Lantern slide
CA448385A Apparatus for developing exposed photographic prints
CA416387A Photographic apparatus