Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8256937 | Drawing assembly with repositionable light | Ray J. Cappello, Ken Temple | 2012-09-04 |
| 8210956 | Motion switch | Robert Sonner | 2012-07-03 |
| 7603505 | Interactive electronic device with digital and analog data links | Donald W. Stucke, Jr., Ray J. Cappello | 2009-10-13 |
| 6816248 | Hand-held automatic refractometer | Keshav Sharma | 2004-11-09 |
| 6486944 | Fluid-sealed refractometer having data transmission means | — | 2002-11-26 |
| 6396576 | Method for determining shadowline location on a photosensitive array and critical angle refractometer employing the method | — | 2002-05-28 |
| 6172746 | Transmitted light refractometer | Michael Byrne, Thomas E. Ryan, Keshav Sharma, Robert Atkinson, David J. Cash | 2001-01-09 |