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NAT ELECTRIC SPECIALTY COMPANY

Overview
  • Total Patents
    14
About

NAT ELECTRIC SPECIALTY COMPANY has a total of 14 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy are SCHWEIZ GLUEHLAMPENFABRIK A G, M O VALVE CO LTD and BOCHKOV VIKTOR DMITRIEVICH.

Patent filings in countries

World map showing NAT ELECTRIC SPECIALTY COMPANYs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 1

Patent filings per year

Chart showing NAT ELECTRIC SPECIALTY COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Electrical machinery and energy

Top inventors

# Name Total Patents
#1 Chapman Frank Spencer 5
#2 Greene John T 3
#3 Chapman Frank S 3
#4 Greene John Tyler 2
#5 Pingen Henry M 1
#6 Wiegand Frederick B 1
#7 Chapman Paul H 1

Latest patents

Publication Filing date Title
US1490105A Lightning arrester
US1223916A Lightning-arrester.
US1178713A Protective apparatus for electrical instruments.
US1104961A Lightning-arrester.
US1155415A Lightning-arrester.
US1104960A Lightning-arrester.
US1191690A Vacuum lightning-arrester.
US1104959A Vacuum lightning-arrester.
US1024555A Manufacture of vacuum lightning-arresters.
US1173096A Lightning-arrester.
CA133032A Soldering device
US1017649A Lightning-arrester.
US1017648A Vacuum lightning-arrester.
US1034584A Lightning-arrester.