Inventor · Eagan, MN, US

James K. Klang

20Patents
19h-index
12Co-inventors
78Inventor score

Filing activity: Jul 1, 1977 → Dec 14, 2006

Most-cited inventions

PatentTitleAreaCited byStatus
US6424158B2 Apparatus and method for carrying out diagnostic tests on batteries and for rapidly charging batteries Electricity 236 Expired
US5589757A Apparatus and method for step-charging batteries to optimize charge acceptance Emerging Cross-Sectional Technologies 227 Expired
US6037751A Method and apparatus for charging batteries Emerging Cross-Sectional Technologies 211 Expired
US5656920A Method and apparatus for charging a lead-acid battery Emerging Cross-Sectional Technologies 205 Expired
US5583416A Apparatus and method for step-charging batteries to optimize charge acceptance Emerging Cross-Sectional Technologies 202 Expired
US5469043A Method for optimizing the charging of lead-acid batteries and an interactive charger Emerging Cross-Sectional Technologies 193 Expired
US6259254A Apparatus and method for carrying out diagnostic tests on batteries and for rapidly charging batteries Electricity 168 Expired
US6466025B1 Alternator tester Physics 165 Expired
US6805090B2 Charge control system for a vehicle battery Emerging Cross-Sectional Technologies 114 Expired
US7619417B2 Battery monitoring system Emerging Cross-Sectional Technologies 107 Active
US7116109B2 Apparatus and method for simulating a battery tester with a fixed resistance load Physics 99 Expired
US7081755B2 Battery tester capable of predicting a discharge voltage/discharge current of a battery Emerging Cross-Sectional Technologies 99 Expired
US6930485B2 Electronic battery tester with battery failure temperature determination Physics 98 Expired
US7208914B2 Apparatus and method for predicting the remaining discharge time of a battery Emerging Cross-Sectional Technologies 84 Expired
US7595643B2 Apparatus and method for simulating a battery tester with a fixed resistance load Physics 75 Active
US7545146B2 Apparatus and method for predicting battery capacity and fitness for service from a battery dynamic parameter and a recovery voltage differential Physics 73 Expired
US7723993B2 Electronic battery tester configured to predict a load test result based on open circuit voltage, temperature, cranking size rating, and a dynamic parameter Physics 65 Expired
US4118219A Process for recycling junk lead-acid batteries Emerging Cross-Sectional Technologies 47 Expired
US5512065A Methods for assembling lead-acid batteries Emerging Cross-Sectional Technologies 22 Expired
US6801040B2 Electronic battery tester with battery failure temperature determination General 0 Revoked

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.