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HOLMES NAVIGATING APPARATUS CO

Overview
  • Total Patents
    16
About

HOLMES NAVIGATING APPARATUS CO has a total of 16 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States, France and Canada. Its main competitors in its focus markets measurement and electrical machinery and energy are ZANABUI INFUOMATEIKUSU KK, ALT HEINRICH and YAMAZAKI SHIGEKI.

Patent filings in countries

World map showing HOLMES NAVIGATING APPARATUS COs patent filings in countries
# Country Total Patents
#1 United States 5
#2 France 4
#3 Canada 3
#4 Germany 2
#5 United Kingdom 2

Patent filings per year

Chart showing HOLMES NAVIGATING APPARATUS COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement
#2 Electrical machinery and energy

Focus technologies

# Technology
#1 Measuring distances
#2 Electric switches
#3 Resistors

Top inventors

# Name Total Patents
#1 Holmes Edward L 5
#2 Holmes Edward Lowther 3

Latest patents

Publication Filing date Title
US1741713A Automatic deviation and distance integrating apparatus
DE515144C Registering compass
DE464888C Arrangement for with alternating current operated steering compasses, the fixed conductor sit insulated on their carrier, and the movable conductor are attached to an insulated carrier rotatable in a liquid
GB273920A Improvements in integrating apparatus for registering functions of angular movements
GB269781A Improvements in navigating apparatus and method of operating the same
US1663552A Electrolytic rheostat
US1663551A Alternating-current relay
US1702404A Electrolytic relay system
US1704250A Navigating apparatus and method
CA281302A Integrating apparatus
CA273513A Electrolytic control system
CA281301A Navigating apparatus