Christopher R. Yahnker
47Patents
28h-index
64Co-inventors
84Inventor score
Filing activity: Mar 16, 2000 → Mar 29, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7688028B2 | Cordless power system | Emerging Cross-Sectional Technologies | 1,787 | Active |
| US7868591B2 | Cordless power system | Emerging Cross-Sectional Technologies | 169 | Active |
| US7270910B2 | Thermal management systems for battery packs | Emerging Cross-Sectional Technologies | 111 | Expired |
| US6286609A | AC/DC chopper for power tool | Electricity | 96 | Expired |
| US7160132B2 | Battery pack—cordless power device interface system | Emerging Cross-Sectional Technologies | 90 | Expired |
| US8043070B2 | Speed control | Emerging Cross-Sectional Technologies | 89 | Active |
| US7508171B2 | Protection methods, protection circuits and protective devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack | Emerging Cross-Sectional Technologies | 88 | Expired |
| US7854597B2 | Pumping system with two way communication | Emerging Cross-Sectional Technologies | 85 | Active |
| US7723952B2 | Cordless power system with system component identification and/or battery pack control | Emerging Cross-Sectional Technologies | 84 | Expired |
| US7686589B2 | Pumping system with power optimization | Fixed Constructions | 77 | Active |
| US6304058A | Cordless power tool system | Emerging Cross-Sectional Technologies | 74 | Expired |
| US8019479B2 | Control algorithm of variable speed pumping system | Mechanical Engineering; Lighting; Heating | 73 | Active |
| US8465262B2 | Speed control | Emerging Cross-Sectional Technologies | 66 | Active |
| US8500413B2 | Pumping system with power optimization | Fixed Constructions | 54 | Active |
| USD568340S1 | Water pump | General | 51 | Expired |
| US7397219B2 | Battery pack for transportation and operation | Emerging Cross-Sectional Technologies | 45 | Expired |
| US9051930B2 | Speed control | Emerging Cross-Sectional Technologies | 45 | Active |
| US6720689B2 | Brushless motor having capacitors mounted on sidewall of motor housing | Electricity | 40 | Expired |
| US6570284B1 | Brushless motor having double insulation | Electricity | 38 | Expired |
| US7486047B2 | Battery pack shipping method | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7463007B2 | Battery pack housing and packaging | Emerging Cross-Sectional Technologies | 35 | Expired |
| US7058291B2 | Brushless DC motor | Emerging Cross-Sectional Technologies | 34 | Expired |
| US7602146B2 | Protection methods, protection circuits and protection devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack | Emerging Cross-Sectional Technologies | 33 | Active |
| US6515451B2 | Cordless power tool system | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7443134B2 | Battery pack shipping system and method | Emerging Cross-Sectional Technologies | 31 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.