Leo Levinson
6Patents
5h-index
5Co-inventors
56Inventor score
Filing activity: Feb 23, 1976 → Jul 30, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5795990A | Method and apparatus for measuring friction and wear characteristics of materials | Physics | 31 | Expired |
| US4269522A | Bi-directional record material feed apparatus | Performing Operations; Transporting | 11 | Expired |
| US4033493A | Pin wheel feeding device | Performing Operations; Transporting | 8 | Expired |
| US4540169A | Cassette sheet feed apparatus | Performing Operations; Transporting | 7 | Expired |
| US4042091A | Record material feed apparatus | Performing Operations; Transporting | 5 | Expired |
| US4235360A | Bi-directional pin feed apparatus | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.