Darrell B. Johnson
7Patents
4h-index
10Co-inventors
50Inventor score
Filing activity: Jun 6, 1995 → Jun 18, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7178600B2 | Apparatus and methods for utilizing a downhole deployment valve | Fixed Constructions | 54 | Expired |
| US5863177A | Apparatus and method for handling lids | Performing Operations; Transporting | 18 | Expired |
| US5542238A | Apparatus and method for loading horizontal stacks of containers into a carton | Performing Operations; Transporting | 5 | Expired |
| US6036429A | High speed article retrieval system | Performing Operations; Transporting | 4 | Expired |
| US6227352A | High speed article retrieval system | Performing Operations; Transporting | 2 | Expired |
| US7364031B1 | Split spin bar for use with plastic lid handling system | Performing Operations; Transporting | 1 | Active |
| US6065925A | Apparatus and method for handling lids | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.