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SPENCER ALEXANDER

Overview
  • Total Patents
    138
About

SPENCER ALEXANDER has a total of 138 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets transport, engines, pumps and turbines and machines are WILLIAM H MINER, CAMPBELL STERLING H and NAT MALLEABLE & STEEL CASTINGS.

Patent filings in countries

World map showing SPENCER ALEXANDERs patent filings in countries
# Country Total Patents
#1 United Kingdom 106
#2 Canada 15
#3 United States 8
#4 Austria 3
#5 Switzerland 2
#6 Spain 2
#7 France 2

Patent filings per year

Chart showing SPENCER ALEXANDERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Spencer Alexander 134
#2 Alexander Spencer 2
#3 Glascodine Richard Thomson 1

Latest patents

Publication Filing date Title
GB114404A Improved Apparatus for Lubricating the Journals of Railway Axles and the like.
GB113768A A Combined Ticket-punch and Carriage Key.
GB120418A Insulator and Binder for Telegraph, Telephone, Electric and other Wires.
GB108785A Improvements in and relating to the Tyre Carrying Rims of Wheels.
GB102742A Improvements in Bogies for Railway and the like Vehicles.
GB191513192A Improvements in Grids for Hose Pipes.
GB191503350A Improvements in Steam Superheaters for Locomotive and other Fire Tube Boilers.
GB191423377A Improvements in and relating to Steam Superheaters, and to Feed Water Heaters, for Locomotives.
GB191419157A Improvements in or relating to Buffer Coupling Apparatus.
GB191408372A Improvements in and relating to Pressure Release Valves for the Cylinders of Locomotives and the like.
GB191408249A Improvements in Bogies for Railway and the like Vehicles.
GB191406985A Improvements in Central Buffing and Draw Gear.
GB191405657A Improvements in or relating to Corrugated Floating Rollers employed in Lubricating Arrangements.
CA155264A Buffing and draw gear
US1113916A Central buffing and draw gear for railway and like vehicles.
GB191329629A Improvements in Buffers for Railway and like Vehicles.
GB191328724A Improvements in Buffers for Railway and like Vehicles.
GB191318322A Improvements in and relating to Fastening Devices for Windows, Doors and the like.
GB191311008A Improvements in and relating to Apparatus for the Slipping of Railway Vehicles from Trains in Motion.
GB191302223A Improvements in and relating to Passengers' Brake Application and Alarm Apparatus for Railway and like Vehicles.