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LEUTHESSER FRED W

Overview
  • Total Patents
    32
About

LEUTHESSER FRED W has a total of 32 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States and Canada. Its main competitors in its focus markets thermal processes, machines and audio-visual technology are ANDERSON PRODUCTS INC, HOFFMAN SPECIALTY COMPANY and DONNELLY JAMES A.

Patent filings in countries

World map showing LEUTHESSER FRED Ws patent filings in countries
# Country Total Patents
#1 United States 31
#2 Canada 1

Patent filings per year

Chart showing LEUTHESSER FRED Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leuthesser Fred W 32

Latest patents

Publication Filing date Title
US2079077A Method of producing nipples
US1913165A Air relief valve
US1664692A Coupling for battery terminals
US1578606A Humidifier for internal-combustion engines
US1098275A Thermostatic trap or valve.
US1102768A Steam, air, and water trap valve.
US1089929A Thermostatic member for air-valves for radiators.
US1075294A Air-valve for radiators.
US1049243A Air-valve for radiators.
US1042012A Air-valve for radiators.
US1062407A Air-valve for radiators.
US1008279A Air-valve.
US1031653A Steam, air, and water trap valve.
US1042011A Steam, air, and water trap valve.
US1037157A Steam, air, and water trap valve.
US960972A Steam, air, and water trap valve.
US954815A Air and water discharge valve for radiators.
US953629A Air and water discharge valve for radiators.
US946970A Steam, air, and water trap valve.
US994848A Name-register.