Eric Johnson
56Patents
16h-index
53Co-inventors
87Inventor score
Filing activity: Sep 29, 1980 → May 28, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5657707A | Spring-tine residue wheel for planters | Emerging Cross-Sectional Technologies | 90 | Expired |
| US7709730B2 | Dual trough concentrating solar photovoltaic module | Emerging Cross-Sectional Technologies | 54 | Active |
| US5232054A | Front folding no-till drill | Human Necessities | 52 | Expired |
| US7968791B2 | Solar energy collection system | Emerging Cross-Sectional Technologies | 48 | Active |
| US7932461B2 | Solar collector framework | Emerging Cross-Sectional Technologies | 46 | Active |
| US7825327B2 | Concentrating solar collector | Emerging Cross-Sectional Technologies | 45 | Active |
| US7820906B2 | Photovoltaic receiver | Emerging Cross-Sectional Technologies | 39 | Active |
| US4664202A | Folding implement frame for grain drills and the like | Human Necessities | 36 | Expired |
| US8049150B2 | Solar collector with end modifications | Emerging Cross-Sectional Technologies | 35 | Active |
| US5022333A | Universal press wheel arm assembly | Human Necessities | 34 | Expired |
| US5027724A | Subsoil fertilizer applicator having arcuately adjustable knife | Human Necessities | 28 | Expired |
| US5463855A | Snap-on height adjustment spacer clips for mower deck wheel spindles and the like | Human Necessities | 26 | Expired |
| US7588405B2 | Incline grain conveyor for grain bins | Performing Operations; Transporting | 25 | Expired |
| US5398625A | Grain drill unit having seed firming wheel | Human Necessities | 23 | Expired |
| USD631004S1 | Dual trough concentrating solar photovoltaic module | General | 23 | Expired |
| US5880420A | Switch operator with interlock mechanism | Electricity | 18 | Expired |
| US4648831A | Blow molding apparatus | Performing Operations; Transporting | 16 | Expired |
| USD341788S | Wall-mounted passive infra-red presence detector | General | 13 | Expired |
| US5254036A | Sectional rasp bar assemblies for combine threshing cylinders | Human Necessities | 10 | Expired |
| US6250843A | Trim assembly for use with a flanged support post | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5261218A | Powered rake having debris windrowing mechanism | Human Necessities | 9 | Expired |
| US8243375B2 | Sub-micron adjustable mount for supporting a component and method | Physics | 8 | Active |
| US5494339A | Seed firming wheel for grain drills and the like | Human Necessities | 7 | Expired |
| US10876324B2 | Multipoint lock | Fixed Constructions | 7 | Active |
| US10718151B2 | Door assembly | Fixed Constructions | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.