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DUR O LITE PENCIL COMPANY

Overview
  • Total Patents
    28
About

DUR O LITE PENCIL COMPANY has a total of 28 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States and Germany. Its main competitors in its focus markets consumer goods and machines are FOYER & CIE LE, AURORA SPA and PLUME D OR.

Patent filings in countries

World map showing DUR O LITE PENCIL COMPANYs patent filings in countries
# Country Total Patents
#1 United States 26
#2 Germany 2

Patent filings per year

Chart showing DUR O LITE PENCIL COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Consumer goods
#2 Machines

Focus technologies

# Technology
#1 Writing or drawing tools
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Lynn John P 18
#2 Carl Merryman 4
#3 Stoeberl Frank J 2
#4 Keeran Charles R 2

Latest patents

Publication Filing date Title
US3097628A Mechanical pencil
US2803219A Adjustable refill extension
US2611342A Drive construction for mechanical pencils
US2563128A Friction tube construction
US2613643A Mechanical pencil
US2555985A Pencil clip
US2287894A Mechanical pencil
US2293993A Eraser for mechanical pencils
US2134568A Mechanical pencil
US2145450A Plunger for mechanical pencils and method of producing same
US2137022A Pencil
US2084646A Pencil
US1997424A Pencil
US1959288A Method of making pencil bodies
US1828871A Pencil
US1827324A Clip for pocket instruments
US1825803A Pencil
US1815309A Pencil
US1826473A Mechanical pencil
US1817011A Pencil