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HEWITT JOHN T

Overview
  • Total Patents
    24
About

HEWITT JOHN T has a total of 24 patent applications. Its first patent ever was published in 1975. It filed its patents most often in United States, EPO (European Patent Office) and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets engines, pumps and turbines, measurement and transport are ELECTRONIQUE INFORMATIQUE SOC, L ASTER SOC and AIR SENSORS INC.

Patent filings per year

Chart showing HEWITT JOHN Ts patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hewitt John T 24
#2 Holtrop Peter B J 2

Latest patents

Publication Filing date Title
US2008271527A1 Liquid level sensor with level alarm
US2008271526A1 Liquid level sensor with flow restrictor
US2008271516A1 Liquid level sensor
WO9855747A1 Vehicle speed limiting system
EP0916020A1 Vehicle speed limiting system
US4647892A Dual magnetic sensor
US4351293A Diesel vehicle speed control system
EP0016236A1 Internal combustion engine control means
US4157701A Diesel engine control means
US4148289A Diesel engine control means
US4078531A Exhaust temperature monitoring system
US4020814A Diesel engine control means
US4023549A Exhaust temperature monitoring system