Gary A. Kasper
71Patents
24h-index
52Co-inventors
91Inventor score
Filing activity: Jul 1, 1983 → Apr 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6131237A | Upright extraction cleaning machine | Chemistry; Metallurgy | 236 | Expired |
| US6446302B1 | Extraction cleaning machine with cleaning control | Human Necessities | 177 | Expired |
| US6167587A | Upright extraction cleaning machine | Chemistry; Metallurgy | 158 | Expired |
| US6868578B1 | Upright vacuum cleaner with cyclonic separation | Emerging Cross-Sectional Technologies | 131 | Expired |
| US6438793B1 | Upright extraction cleaning machine | Chemistry; Metallurgy | 130 | Expired |
| US6401294B2 | Upright extracton cleaning machine with handle mounting | Chemistry; Metallurgy | 121 | Expired |
| US6230362A | Upright extraction cleaning machine | Chemistry; Metallurgy | 119 | Expired |
| US6412141B1 | Upright extraction cleaning machine | Chemistry; Metallurgy | 116 | Expired |
| US6286181A | Upright extraction cleaning machine | Chemistry; Metallurgy | 96 | Expired |
| US6609269B2 | Upright extraction cleaning machine with unitary accessory hose duct | Chemistry; Metallurgy | 67 | Expired |
| US8117713B2 | Vacuum cleaner with two stage filtration | Human Necessities | 61 | Active |
| US8458850B2 | Upright steam mop sweeper | Human Necessities | 54 | Active |
| US6968593B1 | Hand-held deep cleaner | Human Necessities | 54 | Expired |
| US7140068B1 | Vacuum cleaner with cyclonic separation | Human Necessities | 52 | Expired |
| US5651706A | Collapsible pontoon pedal boat | Performing Operations; Transporting | 52 | Expired |
| US9504366B2 | Bare floor cleaner | Human Necessities | 46 | Active |
| US7784148B2 | Surface cleaning apparatus with cleaning fluid supply | Human Necessities | 43 | Active |
| US4993104A | Electrical safety interlock and pulse-type reset circuit for a vacuum cleaner system | Human Necessities | 41 | Expired |
| US6898820B2 | Extraction cleaning with heating | Chemistry; Metallurgy | 30 | Expired |
| US6286180A | Upright water extraction cleaning machine pump priming | Chemistry; Metallurgy | 30 | Expired |
| US4485518A | Wet-dry vacuum cleaning apparatus | Human Necessities | 29 | Expired |
| USRE39304E1 | Upright extraction cleaning machine | General | 29 | Expired |
| US5255768A | Cord winder apparatus for a vacuum cleaner system | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5096475A | Separator for a vacuum cleaner system | Human Necessities | 24 | Expired |
| US5339487A | Filtering means for a liquid pan assembly for a liquid bath vacuum cleaner | Human Necessities | 23 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.