National Union Electric Corporation
48Patents
0Active
48Granted
37Portfolio score
Filing activity: Oct 19, 1953 → Mar 4, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4665582A | Lightweight battery powered suction broom | Human Necessities | 85 | Expired |
| US4376322A | Suction cleaner | Human Necessities | 53 | Expired |
| USD283064S | Hand-held vacuum cleaner | General | 34 | Expired |
| US4621390A | Vacuum cleaner assembly | Human Necessities | 33 | Expired |
| US4369346A | Microwave baking utensil | Human Necessities | 31 | Expired |
| US4174858A | Connection for securing a helically convoluted hose to a hose fitting | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4249281A | Self-propelled vacuum cleaner | Human Necessities | 30 | Expired |
| USD255357S | Industrial vacuum cleaner | General | 29 | Expired |
| USD315816S | Hand-held vacuum cleaner | General | 28 | Expired |
| US4209873A | Brush-beater for a vacuum cleaner and method for making the same | Human Necessities | 27 | Expired |
| USD290895S | Battery powered suction broom | General | 23 | Expired |
| US4748713A | Vacuum cleaner assembly | Human Necessities | 22 | Expired |
| US4777691A | Motor driven brush assembly for vacuum cleaner | Human Necessities | 20 | Expired |
| US3954504A | Fused electrolyte cell and method of making the same | Electricity | 20 | Expired |
| USD288971S | Hand-held vacuum cleaner with extended nozzle | General | 19 | Expired |
| USD276944S | Portable vacuum cleaner | General | 19 | Expired |
| US4742652A | Air restraint device for burnishing machine | Human Necessities | 17 | Expired |
| US4392271A | Electric vacuum cleaner with window for viewing belt | Human Necessities | 17 | Expired |
| USD262619S | Control plate for a room air conditioner | General | 16 | Expired |
| US4358098A | Mounting nut | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5170561A | Hub attachment for a drive shaft of a cordless grass/weed groomer trimmer | Human Necessities | 14 | Expired |
| US4143441A | Vacuum cleaner nozzle | Human Necessities | 13 | Expired |
| USD261515S | Pressure spray carpet cleaner | General | 12 | Expired |
| US4119414A | Filter bag construction for a vacuum cleaner and method of operation | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4147470A | Insulated fan for electric appliance | Mechanical Engineering; Lighting; Heating | 9 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.