Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5995017 | Electronic identification system confirming valid code | Michael J. C. Marsh | 1999-11-30 |
| 5966083 | Electronic indentification system with transponder muting | Michael J. C. Marsh | 1999-10-12 |
| 5726630 | Detection of multiple articles | Michael J. C. Marsh, Clinton Aiden Van Zyl, Andries Christoffel Van Schalkwyk, Marthinus Jacobus Rudolph Oosthuizen | 1998-03-10 |
| 5537105 | Electronic identification system | Michael J. C. Marsh | 1996-07-16 |
| 5519381 | Detection of multiple articles | Michael J. C. Marsh, Clinton Aiden Van Zyl, Andries Christoffel Van Schalkwyk, Marthinus Jacobus Rudolph Oosthuizen | 1996-05-21 |