Michael A. Marshall
2Patents
0Active
2Granted
23Portfolio score
Filing activity: Dec 4, 1974 → Oct 16, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5605415A | Screed bar attachment | Fixed Constructions | 14 | Expired |
| US3937470A | Game footbag | Human Necessities | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.