Vortex, LLC
19Patents
1Active
19Granted
35Portfolio score
Filing activity: Feb 24, 1994 → Nov 26, 2013
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5540848A | Filter retainer for water purification unit | Chemistry; Metallurgy | 96 | Expired |
| US6719830B2 | Toroidal vortex vacuum cleaner centrifugal dust separator | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6616094B2 | Lifting platform | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US5709799A | Super ozonating water purifier | Chemistry; Metallurgy | 57 | Expired |
| US6802693B2 | Vortex attractor with vanes attached to containing ring and backplate | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US6543726B2 | Fluid flow straightening techniques | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| USD357058S | Water purification unit | General | 35 | Expired |
| US6689225B2 | Toroidal vortex vacuum cleaner with alternative collection apparatus | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6520449B2 | Lifting platform with positive horizontal stability | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6811687B2 | Vortex pool cleaner | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6565321B1 | Vortex attractor | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6623352B2 | Vortex air barrier | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6619922B2 | Vortex attractor for planar and non-planar surfaces | Performing Operations; Transporting | 12 | Expired |
| US6729839B1 | Toroidal and compound vortex attractor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6725500B2 | Air recirculating surface cleaning device | Human Necessities | 11 | Expired |
| US6687951B2 | Toroidal vortex bagless vacuum cleaner | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6497553B2 | Vortex attractor | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US9144359B2 | Carpet cleaning device | Human Necessities | 0 | Active |
| US6631534B2 | Air recirculating surface cleaning device | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.