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HALLE CLIFFORD ROBERT STEPHEN JOHN

Overview
  • Total Patents
    17
About

HALLE CLIFFORD ROBERT STEPHEN JOHN has a total of 17 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States, Australia and Spain. Its main competitors in its focus markets consumer goods, transport and telecommunications are CLARK HORACE O, C A V LUNDHOLM AKTIEBOLAG and FRANKEL FRIDOLF.

Patent filings in countries

World map showing HALLE CLIFFORD ROBERT STEPHEN JOHNs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Australia 1
#3 Spain 1
#4 United Kingdom 1

Patent filings per year

Chart showing HALLE CLIFFORD ROBERT STEPHEN JOHNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Halle Clifford Robert Stephen John 16

Latest patents

Publication Filing date Title
AU1416014B Improvement in tyres
US1010899A Automatic firearm.
US980774A Universal-parallel-spring-motion mechanism.
US779928A Wheel for vehicles.
US779929A Wheel for vehicles.
US779930A Wheel for vehicles.
US784397A Wheel for vehicles.
US682067A Piano string-plate.
US682066A Wrest-plank for pianofortes.
US682065A Key for pianofortes.
US725559A Frame, bridge, and soundboard for pianofortes.
GB190019973A Improved Means of Attaching and Firmly Securing Bent Side Plates to the Iron Frames of Pianofortes
US666137A Metal frame and hitch-pin plate for pianos.
US670875A Pianoforte.
US666138A Pianoforte.
US667087A Piano-case.