Daniel Johnson
8Patents
5h-index
12Co-inventors
60Inventor score
Filing activity: Sep 1, 1993 → Mar 5, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5918268A | Line leak detection | Physics | 42 | Expired |
| US7111884B2 | Truck storage and work surface tailgate | Performing Operations; Transporting | 27 | Expired |
| US7204208B2 | Method and apparatuses to remove slag | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5941341A | Mobile ladder stand | Fixed Constructions | 15 | Expired |
| US6039147A | Mobile ladder stand | Fixed Constructions | 7 | Expired |
| US9028354B2 | Hydraulic regeneration apparatus | Emerging Cross-Sectional Technologies | 5 | Active |
| US6962233B2 | Mobile ladder stand | Fixed Constructions | 2 | Expired |
| US8857167B2 | Integral accumulator/reservoir system | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.