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C T HAM MFG COMPANY

Overview
  • Total Patents
    22
About

C T HAM MFG COMPANY has a total of 22 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, thermal processes and machines are ZWEIBRUDER OPTOELECTRONICS GMBH & CO KG, BLACKBEAM LLC and YEH HSUEH-CHU.

Patent filings in countries

World map showing C T HAM MFG COMPANYs patent filings in countries
# Country Total Patents
#1 United States 22

Patent filings per year

Chart showing C T HAM MFG COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bergener Charles 16
#2 Bergener Charles W 3
#3 Pomeroy Bennard H 1
#4 Ham Charles T 1
#5 Macbeth George A 1

Latest patents

Publication Filing date Title
US1130429A Tubular lantern.
US1069370A Tubular lantern.
US1067964A Tubular lantern.
US1067965A Vehicle-lamp.
US1067963A Lantern.
US1041411A Tubular lantern.
US1136580A Convertible lamp.
US977775A Lantern.
US962114A Tubular lantern.
US1072688A Tubular lantern.
US927767A Tubular lantern.
US974630A Gas-burner attachment for oil-burning lamps.
US974629A Lantern-guard.
US898665A Lens.
US920525A Lantern.
US880184A Lamp and lantern.
US896703A Vehicle-lamp.
US852759A Lamp-holder.
US860277A Lamp-extinguisher.
US833951A Lamp and lantern.