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PETRA AG FUER ELEKTROMECHANIK

Overview
  • Total Patents
    24
About

PETRA AG FUER ELEKTROMECHANIK has a total of 24 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, Austria and Finland. Its main competitors in its focus markets optics and furniture and games are IWAN SERRURIER, CHARLES EDWARD HILLERY COLLING and THIRD DIMENSION PICTURES INC.

Patent filings in countries

World map showing PETRA AG FUER ELEKTROMECHANIKs patent filings in countries
# Country Total Patents
#1 United Kingdom 15
#2 Austria 4
#3 Finland 4
#4 Germany 1

Patent filings per year

Chart showing PETRA AG FUER ELEKTROMECHANIKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kucharsky S 1
#2 Kucharski S 1

Latest patents

Publication Filing date Title
GB157874A Improvements relating to kinematograph projection apparatus
GB149332A A cabinet for projecting films or the like, the upper part of which can be folded down so as to lie in the part below
GB158212A A device for stopping the films in kinematograph projection apparatus
GB158211A An improved portable kinematograph projection apparatus
GB158213A Improvements in or relating to apparatus for taking kinematograph photographs
GB158526A Improvements relating to kinematograph projection apparatus
GB145395A An improved cabinet for containing projecting apparatus for kinematograph films
GB150661A Improvements relating to apparatus for taking or projecting moving pictures
GB148744A Improvements relating to the automatic re-winding of films in kinematograph projection apparatus
GB150298A Improvements relating to kinematograph apparatus
GB152286A Improvements relating to apparatus for taking kinematograph records
GB142508A Improvements relating to the forward movement of the film in kinematograph apparatus
GB142807A Improvements relating to kinematograph apparatus
GB146926A Improvements in optical projection cabinets
GB138353A Improvements relating to cinematograph films