John M. Downey
12Patents
5h-index
7Co-inventors
59Inventor score
Filing activity: Apr 11, 1988 → May 11, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4813433A | Syringe for withdrawing blood | Human Necessities | 26 | Expired |
| US5503331A | Insulated rail joint incorporating spacer-impregnated adhesive and method for bonding insulated rail joints | Fixed Constructions | 23 | Expired |
| USD547642S1 | Wrap-around joint bar sleeve insulator | General | 21 | Expired |
| USD576023S1 | Center supported bond joint | General | 11 | Expired |
| US7261244B2 | Tie plate | Fixed Constructions | 6 | Expired |
| US7097112B2 | Profiled bar | Fixed Constructions | 3 | Expired |
| US7975933B2 | Method and arrangement to insulate rail ends | Fixed Constructions | 2 | Active |
| US8302878B2 | Method and arrangement to insulate rail ends | Fixed Constructions | 2 | Active |
| US7090143B2 | Rail joint bars and rail joint assemblies | Fixed Constructions | 2 | Expired |
| US8123144B2 | Rail joint bars and rail joint assemblies | Fixed Constructions | 1 | Active |
| US7490781B2 | Rail joint bars and rail joint assemblies | Fixed Constructions | 1 | Active |
| US11041274B2 | Center supported bond joint | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.