Ward L. Johnson
5Patents
4h-index
6Co-inventors
50Inventor score
Filing activity: Aug 2, 1994 → Aug 15, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5813280A | Acoustic resonator for measuring force | Physics | 22 | Expired |
| US5895856A | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Physics | 14 | Expired |
| US6170336A | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Physics | 12 | Expired |
| US6119522A | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Physics | 5 | Expired |
| US9725752B2 | Resonator and process for performing biological assay | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.