Learn more

HERBERT KAYE RAMSDEN

Overview
  • Total Patents
    15
About

HERBERT KAYE RAMSDEN has a total of 15 patent applications. Its first patent ever was published in 1928. It filed its patents most often in United Kingdom. Its main competitors in its focus markets transport, electrical machinery and energy and environmental technology are KITANAKA HIDETOSHI, INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD and WILLIAM TRAIN GRAY.

Patent filings in countries

World map showing HERBERT KAYE RAMSDENs patent filings in countries
# Country Total Patents
#1 United Kingdom 15

Patent filings per year

Chart showing HERBERT KAYE RAMSDENs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB622345A Improvements in and relating to motive equipments comprising an engine-driven electric generator and an electric motor or motors
GB601175A Improvements in automatic acceleration control systems for electric traction motors
GB592635A Improvements in electric resistances
GB592289A Improvements in trolleybus electric motor control systems
GB539246A Improvements in and relating to control equipments for electric motors
GB439438A Improvements relating to control arrangements for trolley buses
GB435405A Improvements relating to the control of electric motors in traction systems
GB429194A Improvements relating to the control of electric motors in traction systems
GB424571A Improvements relating to electrically propelled vehicles
GB402206A Improvements in or relating to electric motor control systems
GB404278A Improvements relating to protective apparatus for electrically operated vehicles
GB401293A Improvements relating to the control of electric motors
GB396174A Improvements relating to equipments for the control of direct current electric motors
GB396170A Improvements relating to the rheostatic braking of electric motors
GB322095A Improvements in or relating to electric circuit interrupters