Checker Machine, Inc.
2Patents
0Active
2Granted
23Portfolio score
Filing activity: Apr 28, 1988 → Apr 24, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5111929A | Spiral conveyor cleaning system | Performing Operations; Transporting | 23 | Expired |
| US4798062A | Portable food freezer with internal helical conveyor | Performing Operations; Transporting | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.