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RAVENSHAW HENRY WILLOCK

Overview
  • Total Patents
    12
About

RAVENSHAW HENRY WILLOCK has a total of 12 patent applications. Its first patent ever was published in 1893. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets mechanical elements are TORSIFLEX LTD, MUSSARRA ESCAYOLA JESUS and SVENSSON STEN ERIC.

Patent filings in countries

World map showing RAVENSHAW HENRY WILLOCKs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 United States 5

Patent filings per year

Chart showing RAVENSHAW HENRY WILLOCKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements

Focus technologies

# Technology
#1 Clutches and brakes

Top inventors

# Name Total Patents
#1 Ravenshaw Henry Willock 12
#2 Middleton Victor George 6
#3 Townsend William Edward 6
#4 Atkinson Llewelyn Birchall 1

Latest patents

Publication Filing date Title
US947687A Magnetic clutch.
US942867A Magnetic clutch.
GB190814530A Improvements in or connected with Magnetic Clutches.
US942187A Magnetic clutch.
GB190706751A Improvements in Magnetic Clutches or Brakes.
US942186A Magnetic clutch.
GB190701781A Improvements in Magnetic Clutches.
GB190700298A Improvements in or connected with Magnetic Clutches and Brakes.
GB190614517A Improvements in Magnetic Clutches.
GB190604849A Improvements in or connected with Magnetic Clutches.
GB189314562A Improvements in Alternate Current Dynamos and Synchronizing Motors.
US942188A Magnetic clutch or brake.