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KALART CO INC

Overview
  • Total Patents
    157
About

KALART CO INC has a total of 157 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets optics, audio-visual technology and electrical machinery and energy are REVERE CAMERA CO, EXPL DES BREVETS A G I SOC POU and BEAULIEU SA.

Patent filings in countries

World map showing KALART CO INCs patent filings in countries
# Country Total Patents
#1 United States 88
#2 Germany 25
#3 United Kingdom 20
#4 France 10
#5 Switzerland 8
#6 Canada 6

Patent filings per year

Chart showing KALART CO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 William Castedello 51
#2 Morris Schwartz 44
#3 Kaprelian Edward K 28
#4 Castedello William 27
#5 Schwartz Morris 26
#6 Bender Werner K 22
#7 Maurer John A 7
#8 Company Inc The Kalart 5
#9 Hyman Schwartz 3
#10 K Bender Werner 3

Latest patents

Publication Filing date Title
US3764203A Motion picture film projector
US3685893A Cassette for a sound slide projector
US3609022A Motion picture film projector
US3563644A Sound slide projector system
US3561856A Sound slide projector
US3594077A Multiple projector system with single sound source
US3638875A Strip film projector
US3516739A Strip film projector
US3546046A Splicer for butt splicing motion picture film
US3408139A Automatic sound slide projector
GB1154401A Method of Cumulative Recording of Intelligence
US3335851A Can for storing motion picture film and magnetic tape
US3276313A Carrier for audible and visual messages
US3435156A Optical multiple track sound projector
US3289326A Audio-visual teaching material and apparatus for preparing such material
US3349683A Photographic cut-film or plate holder
US3370133A Optical sound-recording apparatus
GB1059140A A method of producing a magnetic record of a sound
US3281151A Method of and device for recording and reproducing photographic sound patterns
US3232167A Sound scanning assembly in a strip film projector