SHOP VAC CORPORATION
412Patents
100Active
412Granted
47Portfolio score
Filing activity: Dec 15, 1977 → Mar 20, 2020 · 40 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6113663A | Vacuum cleaner having a dual filter assembly | Emerging Cross-Sectional Technologies | 97 | Expired |
| US8689396B2 | Portable combined toolbox and vacuum cleaner | Human Necessities | 79 | Active |
| USD521445S1 | Battery cartridge | General | 72 | Expired |
| US4270668A | Buckle or latch for holding lid to container | Emerging Cross-Sectional Technologies | 72 | Expired |
| USD663952S1 | Combination toolbox and vacuum cleaner | General | 64 | Active |
| US4797072A | Portable electric blower | Human Necessities | 63 | Expired |
| US4435877A | Noise reducing means for vacuum cleaner | Human Necessities | 62 | Expired |
| USD664354S1 | Combined toolbox and vacuum cleaner | General | 60 | Active |
| US6107583A | Switch assembly having an enlarged actuation surface | Electricity | 59 | Expired |
| USD389962S | Combined wet and dry vacuum cleaner | General | 50 | Expired |
| USD521446S1 | Battery cartridge | General | 50 | Expired |
| US7337494B2 | Electrostatic cloth attachment for vacuum head | Human Necessities | 49 | Expired |
| USD383575S | Combined wet and dry vacuum cleaner | General | 48 | Expired |
| US4880364A | Portable electric blower | Human Necessities | 47 | Expired |
| USD506042S1 | Combination wet/dry vacuum cleaner | General | 47 | Expired |
| US4330899A | Noise reducing blower motor housing means for vacuum cleaner, or the like | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| USD447293S | Vacuum cleaner | General | 45 | Expired |
| US4836753A | Portable electric blower | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6510583B2 | Cord retainer for vacuum cleaner | Human Necessities | 44 | Expired |
| US6110248A | Dual filter assembly for a vacuum cleaner | Emerging Cross-Sectional Technologies | 43 | Expired |
| USD439710S | Motor cover for vacuum cleaner | General | 43 | Expired |
| US5747973A | Current regulating switch circuit | Electricity | 42 | Expired |
| USD446892S | Vacuum cleaner | General | 42 | Expired |
| US6222285A | Intelligent switch control circuit | Human Necessities | 42 | Expired |
| US4501378A | Resilient detented lid latch | Emerging Cross-Sectional Technologies | 42 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.