Todd M. Johnson
7Patents
5h-index
20Co-inventors
63Inventor score
Filing activity: Feb 24, 1975 → Nov 6, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4869497A | Computer controlled exercise machine | Emerging Cross-Sectional Technologies | 223 | Expired |
| US5798921A | Audio storage/reproduction system with automated inventory control | Physics | 138 | Expired |
| US5407519A | Apparatus for manufacturing liquid crystal display screens | Emerging Cross-Sectional Technologies | 39 | Expired |
| US3948424A | Front rack for motorcycle | Performing Operations; Transporting | 10 | Expired |
| US7950838B2 | Light directing film | Physics | 5 | Active |
| US9810817B2 | Light directing film and method for making the same | Physics | 2 | Active |
| US10197713B2 | Light directing film and method for making the same | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.