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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 22 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Thermal processes | |
#3 | Machines | |
#4 | Furniture and games |
# | Technology | |
---|---|---|
#1 | Portable lighting devices | |
#2 | Lighting device details | |
#3 | Special light sources | |
#4 | Ignition and extinguishing | |
#5 | Burners | |
#6 | Sanitary equipment | |
#7 | Unspecified technologies |
# | 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 |
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. |