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JEWELL ELECTRICAL INSTR CO

Overview
  • Total Patents
    12
About

JEWELL ELECTRICAL INSTR CO has a total of 12 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States and Canada. Its main competitors in its focus markets measurement, electrical machinery and energy and telecommunications are JIANGSU QIYUAN LEIYU ELECTRICAL TECH CO LTD, EVERETT CHARLES TECH and HWANG DONG WEON.

Patent filings in countries

World map showing JEWELL ELECTRICAL INSTR COs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 3

Patent filings per year

Chart showing JEWELL ELECTRICAL INSTR COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ray Simpson 5
#2 Miller John H 4
#3 Olesen Harold L 1
#4 Elvin Folen Nels 1
#5 Hawley Douglass 1

Latest patents

Publication Filing date Title
US1955418A Illuminated connecter
US1949634A Radio testing apparatus
US2053101A Thermionic tube testing device
US1824561A Balance mechanism for instruments
US1745722A Electrical measuring instrument
US1776793A Electrical measuring instrument
US1704151A Spool for electrical instruments and the like
US1720381A Resistor
US1590449A Electrical meter
CA319971A Radio testing device
CA333777A Audion tube circuit testing apparatus
CA311097A Radio tube testing instrument