Learn more

LUCAS OWEN DAVID

Overview
  • Total Patents
    30
About

LUCAS OWEN DAVID has a total of 30 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets weapons, basic materials chemistry and machines are YOUNG CHARLES A, MCCLEAN SAMUEL N and BROWNING JOHN M.

Patent filings in countries

World map showing LUCAS OWEN DAVIDs patent filings in countries
# Country Total Patents
#1 United Kingdom 21
#2 United States 5
#3 Canada 3
#4 Spain 1

Patent filings per year

Chart showing LUCAS OWEN DAVIDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lucas Owen David 29
#2 Marsh Thomas Herbert 1
#3 Valpy Oliver Harris 1
#4 Vandam Albert 1
#5 Pollock Robert 1

Latest patents

Publication Filing date Title
ES117587A1 Improvements in the cracking of liquid hydrocarbons.
GB126734A Improvements in Bolts for Machine Guns, Automatic Rifles, and the like.
GB126384A Improvements in Machine Guns and the like.
GB126661A Improvements in Machine Guns and the like.
GB125598A Improvements in Shell Fuses.
GB123772A Improved Means for Feeding Cartridges to the Barrels of Machine Guns and for Extracting the Cases therefrom.
GB123773A Improvements in Cartridge Feed Mechanism and Magazines for Machine Guns.
GB191513446A Improvements in Machine Guns.
CA164534A Gas producer
CA163399A Pump
US1152112A Pump.
US1153506A Gas-producer.
GB191405847A Improvements in Catalytic Bodies.
US1082466A Carbureter for internal-combustion engines.
US1150782A Carbureter for internal-combustion engines.
GB191008640A Improvements in Carburetters for Internal Combustion Engines.
GB191001167A Electro Magnetic Re-lays and the like.
GB190823962A Improvements in Injector Burners for Gas and Oil Furnaces and the like.
GB190823961A Improvements in Pressure Governors and the like.
US957976A Atomizer and the like.