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DONOVAN JOHN S

Overview
  • Total Patents
    14
About

DONOVAN JOHN S has a total of 14 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets basic communication technologies, mechanical elements and weapons are KWON YOON GU, AMSLER RUDOLF and ERICH KNOLLER.

Patent filings in countries

World map showing DONOVAN JOHN Ss patent filings in countries
# Country Total Patents
#1 United States 9
#2 Germany 2
#3 United Kingdom 2
#4 EPO (European Patent Office) 1

Patent filings per year

Chart showing DONOVAN JOHN Ss patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Donovan John S 11
#2 S Donovan John 2

Latest patents

Publication Filing date Title
GB9218638D0 Sefety apparatus for bench press
EP0163461A2 Non biased push-pull amplifiers
US4688000A Non biased push-pull amplifiers
US4562403A Symmetrical discriminator and demodulator
US4450752A Gas operated automatic weapon
US4403220A Radar system for collision avoidance
US4253378A Gas operated automatic weapon
US4223590A Ammunition belt
US4270437A Gas operated automatic weapon
US4210060A Gas operated automatic weapon
US3983405A Shift control system for multi-stage transmission
GB1221164A Hydro-mechanical transmission