Learn more

W H ALLEN SONS & COMPANY LTD

Overview
  • Total Patents
    25
About

W H ALLEN SONS & COMPANY LTD has a total of 25 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and measurement are TALALMANYKIFEJLESZTOE ES ERTEK, BACHL HERBERT and SVENSKA TURBINFAB AB.

Patent filings in countries

World map showing W H ALLEN SONS & COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 24
#2 United States 1

Patent filings per year

Chart showing W H ALLEN SONS & COMPANY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marks David Alex 1
#2 Perrott Francis Cyril 1
#3 Hayes Claude W 1
#4 Miles Thomas Snelgrove 1
#5 Oxford John Thomas Bosher 1

Latest patents

Publication Filing date Title
GB1071165A Improvements relating to brushless alternators and synchronous motors
GB877701A Improvements in and relating to steady bearings for vertical shafts, especially borehole pump shafts
GB817490A Improvements in and relating to flexible couplings for transmitting or restraining torque especially in planetary or epicyclic gearing
GB813399A Improvements in and relating to blading and shrouding arrangements in axial flow elastic fluid turbines
GB805003A Improvements in and relating to inlet duct arrangements for gas turbines and compressors
GB724647A Improvements in and relating to labyrinth glands for moving machine parts
US2835471A Securing of blading to turbine wheels and other high speed rotary members
GB731538A Improvements in and relating to spill burner fuel supply systems
GB704882A Improvements in and relating to the securing of blading to turbine wheels and other high speed rotary members
GB703173A Improvements in and relating to the securing of blading to turbine wheels and other high speed rotary members
GB706491A Improvements in or relating to lubrication arrangements for high speed machines suchas elastic fluid turbines and the like
GB705381A Improvements in and relating to blade supporting and casing arrangements for elasticfluid or gas turbines
GB699865A Improvements in or relating to gas turbines
GB740682A Improvements in or relating to gas turbines and turbine wheels or rotors thereof
GB711271A Improvements in or relating to waste heat recovery installations
GB653090A Improvements in and relating to impulse nozzles for fluid pressure turbines
GB557607A Improvements in and relating to steam sealed glands for steam turbines
GB501125A Improvements in governor mechanisms for steam turbines, diesel engines and the like
GB501047A Improvements in governor mechanisms for steam turbines
GB501130A Improvements in mountings for engines and other power units