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ROBERT T MACK

Overview
  • Total Patents
    13
About

ROBERT T MACK has a total of 13 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and telecommunications are PARTSNIC CO LTD, DUBILIER CONDENSER CO LTD and DAEWOO ELECTRONIC COMPONENT.

Patent filings in countries

World map showing ROBERT T MACKs patent filings in countries
# Country Total Patents
#1 United States 13

Patent filings per year

Chart showing ROBERT T MACKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Edelman Philip E 13

Latest patents

Publication Filing date Title
US2014169A Filming metal for condensers
US2024210A High voltage electrolytic couple
US1927629A Screen grid vacuum tube
US1964978A Manufacture of vacuum tubes
US1990274A Polarizing electrolyte
US1964977A Condenser speaker
US1997815A Talking motion picture screen
US1999408A Electrolytic apparatus
US1951476A Alternating current condensers and arrangement of the same
US1961746A Automatic voltage regulator system
US1974179A Electrical filter circuit device
US1927628A Vacuum tube amplifier system
US1927631A Vacuum tube