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JOHN DOLZA

Overview
  • Total Patents
    22
About

JOHN DOLZA has a total of 22 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and machines are VOLLMER JOSEPH, GNOME ET RHONE MOTEURS and HENRIOD CHARLES EDOUARD.

Patent filings in countries

World map showing JOHN DOLZAs patent filings in countries
# Country Total Patents
#1 United States 18
#2 United Kingdom 4

Patent filings per year

Chart showing JOHN DOLZAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 John Dolza 14
#2 Bouvy Christiaan H 3
#3 Sergio Angelini 1

Latest patents

Publication Filing date Title
US3260125A Gear drive assembly
US3217699A Valve actuation mechanism
US3164143A Internal combustion engine
US3304924A Tensioning pulley
US3170446A Valve actuating mechanism
US3183731A Rotary motion transmitting mechanism for internal combustion engines and the like
US3200659A Rotary motion transmitting mechanism for internal combustion engines and the like
US3216267A Rotary motion transmitting mechanism for internal combustion engines and the like
US3192706A System for reducing the emission of unburned combustibles from an internal combustion engine
US3022775A Cylinder heads for internal combustion engines
US3092089A Internal combustion engines
US3046953A Internal combustion engines
US3046952A Internal combustion engines
US2981551A Self-leveling devices for vehicle suspensions
US3047216A Centrifugal oil cleaner vibration dampeners
US2997230A Centrifugal oil cleaners for internal combustion engines
GB854568A Improvements in fuel injection systems for internal combustion engines
US2957455A V-six engines
US2882879A Fuel injection systems