RF

Roy Freeland

PE Perpetuum: 5 patents #3 of 15Top 20%
Overall (All Time): #1,013,456 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8432084 Converting mechanical vibrational energy into electrical energy Stephen Roberts 2013-04-30
8135469 Energy harvester for an implant device Stephen Roberts, Giles Stanley, Keith Dobson Dawkins, John Morgan, Paul Roberts 2012-03-13
8080906 Generator for converting mechanical vibrational energy into electrical energy Stephen Roberts 2011-12-20
7999402 Electromechanical generator for converting mechanical vibrational energy into electrical energy Stephen Roberts 2011-08-16
7843090 Electromechanical generator for converting mechanical vibrational energy into electrical energy Stephen Roberts, Neil White 2010-11-30