BIRTMAN ELECTRIC CO has a total of 120 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets furniture and games, machines and electrical machinery and energy are CARLSTEDT SVEN BOERJE FREDRIK, HALTMAYER WERNER and EVERCARE CO.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 112 | |
#2 | Canada | 5 | |
#3 | United Kingdom | 3 |
# | Industry | |
---|---|---|
#1 | Furniture and games | |
#2 | Machines | |
#3 | Electrical machinery and energy | |
#4 | Consumer goods | |
#5 | Textiles and paper |
# | Technology | |
---|---|---|
#1 | Domestic washing | |
#2 | Unspecified technologies | |
#3 | Laundering textiles | |
#4 | Dynamo-electric machines | |
#5 | Unspecified technologies | |
#6 | Electric switches | |
#7 | Sewing | |
#8 | Kitchen equipment | |
#9 | Milling | |
#10 | Special electric heating or lighting |
# | Name | Total Patents |
---|---|---|
#1 | Sparklin Charles H | 48 |
#2 | Howard Frank S | 17 |
#3 | More Philip J | 8 |
#4 | English Frederick A | 6 |
#5 | Schwarz Joseph A | 5 |
#6 | Lanter Clarence W | 5 |
#7 | French Edward A | 4 |
#8 | Wiehle Edward W | 4 |
#9 | Sporney George C | 3 |
#10 | Hulfish Buford W | 3 |
Publication | Filing date | Title |
---|---|---|
US2794163A | Speed governor for electric motor | |
US2798696A | Food mixer | |
US2759659A | Air flow apparatus | |
US2754048A | Vacuum cleaner air valve | |
US2773679A | Mixer | |
US2744343A | Steam iron | |
US2763227A | Bobbin case | |
US2757909A | Agitator device for a mixer | |
US2779964A | Rotatable polisher member | |
US2753825A | Bobbin case | |
US2740215A | Control apparatus for a motor operated mangle | |
US2744678A | Vacuum cleaner suction device | |
US2744691A | Bobbin winder | |
US2726466A | Steam iron | |
US2744342A | Steam iron | |
US2662753A | Food mixer | |
US2744679A | Vacuum cleaner | |
US2763795A | Ventilating apparatus for a motor | |
US2656163A | Mixer bowl | |
US2702871A | Electric motor, including an impedance and cooling means therefor |