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PLENTY & SON LTD

Overview
  • Total Patents
    15
About

PLENTY & SON LTD has a total of 15 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and measurement are ITT BORNEMANN GMBH, MIETTO VIRGILIO and KASHIYAMA IND LTD.

Patent filings in countries

World map showing PLENTY & SON LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 United States 5
#3 Germany 2

Patent filings per year

Chart showing PLENTY & SON LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Vanderstegen-Drake Stamford Ro 4
#2 Brown Stanley Graham 2
#3 Francis Vanderstegen-Drake Sta 1
#4 Vanderstegendr Stamford Robert 1
#5 Drummond John 1
#6 Vanderstegen-Drake Stamford R 1
#7 Vanderstegendrake Stamford Rob 1
#8 Vandersjegendrake Stamford Rob 1
#9 Shoosmith Guy Taite 1
#10 Henry Kent-Norris 1

Latest patents

Publication Filing date Title
US3768324A Automatic belt tensioning device
GB1269628A Improvements in and relating to inter-meshing screw pumps
US3541861A Pipe-line sampling apparatus
GB1236549A Improvements in and relating to gas filters
GB1236017A Improvements in and relating to gas filters with preliminary cyclone separation
GB1188526A Improvements in and relating to Variable Capacity Rotary Positive-Displacement Hydraulic Pumps
GB1020019A Improvements in or relating to apparatus for continuously supplying a mixture of liquid and solid materials at a constant rate
GB850188A Improvements in or relating to pumps
GB810099A Improvements in and relating to pump installations
GB689313A Improvements in and relating to the control of pumps
US1472869A Governing mechanism for internal-combustion engines