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DOUBLE DYNASTY CO LTD

Overview
  • Total Patents
    11
About

DOUBLE DYNASTY CO LTD has a total of 11 patent applications. Its first patent ever was published in 2000. It filed its patents most often in EPO (European Patent Office) and United States. Its main competitors in its focus markets machine tools, machines and chemical engineering are STORM PNEUMTIC TOOL CO LTD, SUN YUNG-YUNG and FUJI AIR TOOL.

Patent filings in countries

World map showing DOUBLE DYNASTY CO LTDs patent filings in countries
# Country Total Patents
#1 EPO (European Patent Office) 6
#2 United States 5

Patent filings per year

Chart showing DOUBLE DYNASTY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Wen-Yuan 10
#2 Wang Frank 1

Latest patents

Publication Filing date Title
EP2221110A1 Rotary spray gun
US2009197515A1 Adjustment device for a front guard of a grind wheel
EP1946889A1 A maintenance device for grinding wheel
EP1946893A1 A removing tool for removing a protection strip of a car
US2008023263A1 Intake and exhaust guide device for pneumatic tool
US2008030035A1 Removing tool removing a protection strip of car
US2008023209A1 Intake and exhaust guide device for pneumatic tool
US6342002B1 Structure of a wax-polishing machine