Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258906 | System for remotely authorizing operation of a device and for automatically generating an invoice based on device usage | Mark W. Kroll | 1993-11-02 |
| 5188116 | Electrocardiographic method and device | James E. Brewer, Mark W. Kroll | 1993-02-23 |
| 4956877 | Optical fiber reflective signal modulation system | Mark W. Kroll | 1990-09-11 |
| 4879760 | Optical fiber transmissive signal modulation system | Mark W. Kroll | 1989-11-07 |
| 4769760 | Terrain biased dynamic multiple threshold synchronization method and apparatus | Mark W. Kroll | 1988-09-06 |
| 4763660 | Flexible and disposable electrode belt device | Mark W. Kroll, Dan A. Hanson | 1988-08-16 |