Vistech LLC
8Patents
2Active
8Granted
35Portfolio score
Filing activity: Oct 1, 1985 → Feb 15, 2010 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4691231A | Bottle inspection system | Emerging Cross-Sectional Technologies | 103 | Expired |
| US4731649A | Oblique illumination for video rim inspection | Physics | 40 | Expired |
| US4800404A | Apparatus and method for testing visual sensitivity to glare | Human Necessities | 23 | Expired |
| US4789234A | Apparatus and method for testing the motion contrast visual sensitivity of an individual | Human Necessities | 19 | Expired |
| US5910844A | Dynamic three dimensional vision inspection system | Electricity | 11 | Expired |
| US8327157B2 | Secure encrypted email server | Electricity | 11 | Active |
| US4859052A | Portable screen assembly for visual acuity testing | Human Necessities | 7 | Expired |
| US7684608B2 | Tape and reel inspection system | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.