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LEE CHARLES A

Overview
  • Total Patents
    18
About

LEE CHARLES A has a total of 18 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machines, computer technology and measurement are MEMTEC AMERICA CORP, VESPER CORP and FILMTEC CORP.

Patent filings in countries

World map showing LEE CHARLES As patent filings in countries
# Country Total Patents
#1 United States 15
#2 Canada 2
#3 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing LEE CHARLES As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Charles A 18
#2 Root Edwin P 2
#3 Derge Ernest T 2
#4 Hunt Robert F 1
#5 Macintosh William R 1
#6 Amato Fredrick J 1

Latest patents

Publication Filing date Title
US2006038043A1 Water line safety valve
US3871953A Papermaking system including a flexible ceramic member having a pre-loaded tensile force applying means
US2378412A Apparatus for hydrodynamictesting of ship models
US2382999A Circulating water channel
US2128831A Combined keg rack and table
US2153870A Explosive engine
US1748422A Locking mechanism
US1776331A Engine-operating device
US1185807A Extensible foot-rest.
US1211186A Adjustable friction-hinge.
US1156156A Extensible foot-rest for chairs.
US939278A Cushion-stuffing device.
US759895A Apparatus for stuffing cushions.
US667843A Cash-register.
US667844A Cash-register.
CA63233A Draft equalizer
CA62717A Vessel closure