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SPARKS CHARLES HOWARD

Overview
  • Total Patents
    11
About

SPARKS CHARLES HOWARD has a total of 11 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Germany, Switzerland and United States. Its main competitors in its focus markets medical technology and machines are INT HEART INST MONTANA, W K ET ASSOCIES and ROCHAL IND INC.

Patent filings in countries

World map showing SPARKS CHARLES HOWARDs patent filings in countries
# Country Total Patents
#1 Germany 4
#2 Switzerland 3
#3 United States 3
#4 United Kingdom 1

Patent filings per year

Chart showing SPARKS CHARLES HOWARDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Sparks Charles Howard 6
#2 Charles Howard Sparks 2
#3 Howard Sparks Charles 2
#4 Sparks Executrix By Margaret J 1

Latest patents

Publication Filing date Title
US3938524A Compliant mandrel and mandrel assembly for growing graft tubes
US3866247A Graft tubes
US3866609A Apparatus for growing graft tubes in place
DE2065440A1 Graft reinforcement - for encapsulation with living - tissues is silicone rubber impregnated material
DE2022576A1 Piece of tissue that can be implanted in a living body, as well as method and device for its production
DE1766712A1 Implantable tissue parts and methods and apparatus for their production