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FIELD MICHAEL BIRT

Overview
  • Total Patents
    16
About

FIELD MICHAEL BIRT has a total of 16 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United Kingdom and Canada. Its main competitors in its focus markets measurement, electrical machinery and energy and optics are GEORGES JEAN POIVILLIERS, ERICH HOERNER and ERMENEGILDO SANTONI.

Patent filings in countries

World map showing FIELD MICHAEL BIRTs patent filings in countries
# Country Total Patents
#1 United Kingdom 15
#2 Canada 1

Patent filings per year

Chart showing FIELD MICHAEL BIRTs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Field Michael Birt 16

Latest patents

Publication Filing date Title
GB136008A Apparatus for use in Tracing Drawings also applicable as a Printing Frame.
GB122434A Improvements in or relating to Magnetic Liquid Compasses.
GB116806A Improvements in or relating to Magnetic Compasses.
GB191512973A Improvements in Navigational Sounding Machines.
GB191414171A New or Improved Means for Taking Azimuth Bearings.
GB191411881A Improvements in or relating to Magnetic Compasses.
GB191118611A Improvements in and relating to Automatic Starters for Electric Motors.
CA131326A Electric heater
GB190717377A Improvements in or relating to Combined Filters or Strainers and Pourers for Petrol and the like.
GB190600966A Improvements in or relating to the Windings of Dynamo-electric Machines and Electric Transformers.
GB190512431A Improvements in or relating to Electrical Phase Indicators and other Induction Instruments
GB190501563A Improvements in Electrical Measuring Instruments.
GB190400319A Improvements in Electric Cables
GB190213792A A New or Improved Fault-indicator for Electric Circuits.
GB190000184A A New or Improved Method of Determining the Voltage Obtaining at a Near or Distant Part of an Electric Circuit, or the Average Voltage Obtaining at Several Parts thereof, & Apparatus therefor.
GB189715168A A Method of Measuring Electrical Power and Appliances for that purpose.