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E R CALTHROP S AERIAL PATENTS

Overview
  • Total Patents
    24
About

E R CALTHROP S AERIAL PATENTS has a total of 24 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets transport, machines and optics are BOOTH WILLIAM R, AIRBORNE SYSTEMS LTD and P D OF MIAMI INC.

Patent filings in countries

World map showing E R CALTHROP S AERIAL PATENTSs patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 6
#3 France 5
#4 Germany 3
#5 United Kingdom 2

Patent filings per year

Chart showing E R CALTHROP S AERIAL PATENTSs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Richard Calthrop Everard 7
#2 Calthrop Everard Richard 4
#3 Calthrop Everad Richard 1
#4 Calthrop Everard 1
#5 William Schollar Percy 1

Latest patents

Publication Filing date Title
DE392510C Aircraft
US1445293A Aerial craft
DE400726C Parachute
DE364410C Suspension device for parachutes with resilient links between the parachute and the tether for the person jumping
US1466988A Parachute
US1392260A Retaining and releasing device for ropes, cordage, and the like
US1369395A Parachute
US1353378A Parachute
GB152725A Improvements relating to retaining and releasing devices for ropes, cordage and the like
GB152726A Improvements in and relating to the spooling of tapes and the like
US1345582A Parachute
US1436011A Parachute
US1401040A Safety spring-sling particularly adapted for use with parachutes
CA204584A Parachute
CA202794A Parachute
CA205325A Parachute fastener
CA223829A Parachute
CA224028A Parachute
CA204756A Parachute