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DUPLAN SILK CORP

Overview
  • Total Patents
    18
About

DUPLAN SILK CORP has a total of 18 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, Switzerland and Germany. Its main competitors in its focus markets textiles and paper, measurement and audio-visual technology are Dalian hualong filter cloth co ltd, SARAFIAN HOVCEP and HEBEI RUICHUN TEXTILE CO LTD.

Patent filings in countries

World map showing DUPLAN SILK CORPs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Switzerland 2
#3 Germany 2
#4 France 2
#5 Canada 1
#6 United Kingdom 1

Patent filings per year

Chart showing DUPLAN SILK CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Geier Ernest C 3
#2 Walter Geier Conrad 3
#3 John Haesler 2
#4 Silk Corporation Duplan 2
#5 Irving Lewin 2
#6 Fischer Henry H C 1
#7 Probert Ezra L 1
#8 Geier Conrad Walter 1
#9 Albert Hasler 1
#10 Dietrich Walter H 1

Latest patents

Publication Filing date Title
US2257228A Pile fabric loom construction
US2199400A Fabric construction
US2192997A Loom attachment
US2156935A Yarn and fabric construction
US2002953A Adjusting device for looms and method of controlling the beating-up operation
DE595229C Method and device for adjusting the reed to the stop line
GB406467A Improvements in reed and lay controlling mechanism for looms for weaving
US1972296A Heddle
US1975587A Adjusting device for looms and method of controlling weft threads
US1960901A Protective covering for warps mounted on beams
US1827513A Method and means of identifying fabrics
US1575758A Warping machine
DE403806C Method for testing the cohesion of silk threads
CA341808A Loom device