Kenneth M. Lenkiewicz
46Patents
16h-index
33Co-inventors
81Inventor score
Filing activity: Jul 8, 1998 → Feb 26, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6167587A | Upright extraction cleaning machine | Chemistry; Metallurgy | 158 | Expired |
| US6658692B2 | Small area deep cleaner | Human Necessities | 151 | Expired |
| US6230362A | Upright extraction cleaning machine | Chemistry; Metallurgy | 119 | Expired |
| US6412141B1 | Upright extraction cleaning machine | Chemistry; Metallurgy | 116 | Expired |
| US7073226B1 | Portable extraction cleaner | Human Necessities | 115 | Expired |
| US6286181A | Upright extraction cleaning machine | Chemistry; Metallurgy | 96 | Expired |
| US7779505B2 | Wet/dry vacuum cleaner | Human Necessities | 59 | Active |
| US6968593B1 | Hand-held deep cleaner | Human Necessities | 54 | Expired |
| US7225503B1 | Hand-held deep cleaner | Human Necessities | 52 | Expired |
| US8641309B2 | Surface treating implement | Human Necessities | 40 | Active |
| US8844584B1 | Apparatus and method for a pressurized dispenser refill system | Performing Operations; Transporting | 23 | Active |
| US8230549B2 | Upright extractor | Human Necessities | 22 | Active |
| US6467122B2 | Deep cleaner with tool mount | Human Necessities | 22 | Expired |
| US9549648B2 | Lift off deep cleaner | Human Necessities | 20 | Active |
| US7979955B2 | Surface cleaning apparatus with recovery tank | Human Necessities | 16 | Active |
| US7845045B2 | Extraction with air venting | Human Necessities | 16 | Active |
| US9427128B2 | Extraction cleaner | Human Necessities | 15 | Active |
| US9295365B2 | Extractor with auxiliary fluid dispenser | Human Necessities | 11 | Active |
| US10231587B2 | Cyclone module for vacuum cleaner | Performing Operations; Transporting | 10 | Active |
| US7979951B2 | Surface cleaning apparatus with recovery tank | Human Necessities | 10 | Active |
| US10238260B2 | Surface cleaning apparatus with movable squeegee | Human Necessities | 10 | Active |
| US8146200B2 | Surface cleaning apparatus with accessory working air path | Human Necessities | 9 | Active |
| US11439283B2 | Self-cleaning system and method for extraction cleaners | Human Necessities | 8 | Active |
| US10827888B2 | Vacuum cleaner | Human Necessities | 8 | Active |
| US9107558B2 | Lift off deep cleaner | Human Necessities | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.