Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810146 | Wide edge lead currency thread detection system | — | 1998-09-22 |
| 5765434 | Capacitive water height gauge and method | — | 1998-06-16 |
| 5753814 | Magnetically-oscillated probe microscope for operation in liquids | Wenhai Han, Stuart Lindsay, Tianwei Jing | 1998-05-19 |
| 5535871 | Detector for a security thread having at least two security detection features | — | 1996-07-16 |
| 5434427 | Currency verification device | Timothy T. Crane, Robert J. Danek, Richard A. Menelly | 1995-07-18 |
| 5419424 | Currency paper security thread verification device | — | 1995-05-30 |
| 5417316 | Capacitive verification device for a security thread embedded within currency paper | — | 1995-05-23 |
| 5394969 | Capacitance-based verification device for a security thread embedded within currency paper | — | 1995-03-07 |
| 5308992 | Currency paper and banknote verification device | Timothy T. Crane, Robert J. Danek, Richard A. Menelly | 1994-05-03 |
| 5279403 | Microwave security thread detector | Timothy T. Crane | 1994-01-18 |
| 4857747 | Method and apparatus for analyzing the formation of a web of material via generating a formation index | Joseph A. Bolton | 1989-08-15 |
| 4402482 | Precision traveling optical table assembly | Frank R. Mitchell | 1983-09-06 |
| 4312590 | Optical scanner and system for laser beam exposure of photo surfaces | — | 1982-01-26 |
| 4233636 | Optical read-write system with electronically variable image size | Gary Hoogerbrugge | 1980-11-11 |