Learn more

MARSHALL HERBERT JOHN

Overview
  • Total Patents
    20
About

MARSHALL HERBERT JOHN has a total of 20 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom. Its main competitors in its focus markets engines, pumps and turbines, thermal processes and mechanical elements are MORSE TEC EUROP SPA, VALASOPOULOS CHRISTOS and NINGBO GAOFA AUTOMOTIVE CONTROL SYSTEM CO LTD.

Patent filings in countries

World map showing MARSHALL HERBERT JOHNs patent filings in countries
# Country Total Patents
#1 United Kingdom 20

Patent filings per year

Chart showing MARSHALL HERBERT JOHNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marshall Herbert John 20
#2 Marshall Charles Cuthbert 1
#3 Salfield Charles Sigfrid 1

Latest patents

Publication Filing date Title
GB191227471A Improvements in Machines for Breaking Up the Surface of Macadamised Roads or for similar purposes.
GB191222705A Improvements in Operating and Controlling Change Speed Gear as applied to Traction Engines or for analogous purposes.
GB191212304A Improvements in Steam Superheaters.
GB191110405A Improvements in Thrashing Machines.
GB191004647A Improvements in Steam Superheaters.
GB191001687A Improvements in Valve Gear for Internal Combustion Engines.
GB190916917A Improvements in Engine Valve Gear.
GB190901505A Improvements in Compensating or Differential Gearing, applicable to Traction Engines, Road Locomotives, Motor Cars and the like.
GB190826128A Improved Means for Controlling the Air Supply of Internal Combustion Engines.
GB190808156A Improvements in Speed Adjusting Gear for Engine Governors and Analogous Purposes.
GB190803359A Improvements relating to the Lubrication of Thrashing Machines
GB190801943A Improvements in Thrashing Machines.
GB190727100A Improvements in Rotary Pumps.
GB190725629A Improvements in Tractors or Traction Engines of the Internal Combustion Type.
GB190707026A Improvements in Thrashing Machines.
GB190705105A Improvements in Thrashing Machines.
GB190523611A Improvements in Apparatus for Cutting the Bands of Sheaves in connection with Thrashing Machines.
GB190517082A Improvements in Chocks for Adjusting and Securing the Travelling Wheels of Portable Engines, Thrashing Machines or the like.
GB190506281A Improvements in Protectors for Water Gauge Glasses
GB189520701A Improvements in Governors for Marine Engines.