HART & HEGEMAN MFG CO has a total of 104 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, machines and machine tools are ARROW HART & HEGEMAN ELECTRIC, TRUMBULL ELECTRIC MFG CO and JOHNSON TOMLINSON F.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 104 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Machine tools | |
#4 | Civil engineering |
# | Name | Total Patents |
---|---|---|
#1 | Guett Monroe | 54 |
#2 | Monroe Guett | 20 |
#3 | Sachs Joseph | 10 |
#4 | Stirling Clarence C | 8 |
#5 | Morris Shiras | 3 |
#6 | Foster Uri D | 2 |
#7 | Gates Frederic P | 2 |
#8 | Francis Charles A | 1 |
#9 | Peck Ashley P | 1 |
#10 | Strout Theodore C | 1 |
Publication | Filing date | Title |
---|---|---|
US1797983A | Electric-lamp fixture | |
US1680101A | Lever-operated electric switch | |
US1680100A | Switch | |
US1698587A | Switch and fuse-plug socket | |
US1658635A | Attachment plug | |
US1710576A | Spring for electric snap switches | |
US1652118A | Radiocondenser | |
US1634185A | Double-throw switch | |
US1633405A | Switch | |
US1633404A | Tube socket | |
US1652541A | Electric snap switch | |
US1643210A | Electric switch | |
US1648805A | Receptacle | |
US1650871A | Flush wall switch | |
US1650870A | Electrical connecter device | |
US1446652A | Actuator for electric appliances | |
US1511809A | Snap switch | |
US1503153A | Metal-working machine | |
US1411086A | Electric-appliance receiving box | |
US1466267A | Electric snap switch |