Lars E. Larsson
12Patents
7h-index
9Co-inventors
59Inventor score
Filing activity: Oct 4, 1979 → Apr 9, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4304312A | Percussion drill bit having centrally projecting insert | Fixed Constructions | 85 | Expired |
| US4607712A | Rock drill bit | Fixed Constructions | 19 | Expired |
| US4296825A | Rock drill | Fixed Constructions | 15 | Expired |
| US4622665A | Synchronizing system | Electricity | 14 | Expired |
| US5435590A | Means for limiting the steering movement of a vehicle | Performing Operations; Transporting | 12 | Expired |
| US4749051A | Drill steel | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4862865A | Insulation material and method of applying the same to a component in a combustion engine | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4540200A | Rock drill | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US10167688B2 | Method of disconnecting a drill string at a drill rig | Fixed Constructions | 5 | Active |
| US9745806B2 | Drill rod gripping apparatus | Fixed Constructions | 4 | Active |
| US9650849B2 | Drilling rig rod handling apparatus | Fixed Constructions | 4 | Active |
| US5722355A | Twin-piston engine | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.