Kevin A. Butler
13Patents
3h-index
7Co-inventors
49Inventor score
Filing activity: Nov 21, 2005 → Oct 26, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8167429B1 | Ophthalmic examination system wireless interface device | Human Necessities | 12 | Active |
| US7521081B2 | Method for reducing reactivity of ferroalloys used in fabricating coated stick welding electrodes | Chemistry; Metallurgy | 9 | Active |
| US8419184B1 | Ophthalmic examination system interface device | Human Necessities | 6 | Active |
| US7536266B2 | Universal X-ray fluorescence calibration technique for wire surface analysis | Physics | 3 | Active |
| US7325444B2 | Methods and systems for determining moisture transfer characteristics of welding materials | Physics | 1 | Expired |
| US7495766B2 | Spectroscopic analysis technique for measuring the amount of surface material on wire | Physics | 1 | Active |
| US10244938B1 | Vision testing system and method | Human Necessities | 0 | Active |
| US9820644B2 | Glare assembly for eye test display | Human Necessities | 0 | Active |
| US7820944B2 | Spectroscopic technique for measuring the composition of cored wire electrodes | Performing Operations; Transporting | 0 | Active |
| US10182713B2 | Glare assembly for eye test display | Human Necessities | 0 | Active |
| US9433347B2 | Glare assembly for eye test display | Human Necessities | 0 | Active |
| US8992022B2 | Glare assembly for computerized eye test display | Human Necessities | 0 | Active |
| US8550631B2 | Glare assembly for computerized eye test display | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.