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Roy Freeland — 5 Patents

PEPerpetuum: 5 patents #3 of 15Top 20%
Shawford, GB: #1 of 3 inventorsTop 35%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Roy Freeland has been granted 5 US patents while listed as an inventor at Perpetuum. The first was granted in 2010 and the most recent in April 2013. Roy Freeland ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Roy Freeland in Shawford, GB.

Patents per Year

Patents granted per year, 2010 to 2013Bar chart with a peak of 2 patents in 2011.peak 22010: 1 patents20102011: 2 patents20112012: 1 patents20122013: 1 patents2013

Issued Patents All Time

Showing 1–5 of 5 patents

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

Frequent Collaborators

Stephen Roberts5 shared
Keith Dobson Dawkins1 shared
Neil White1 shared
Paul Roberts1 shared
Giles Stanley1 shared
John Morgan1 shared

Nearby-Ranked Inventors

Joseph L. Mann5
Terry Richard Linn5
Ikuo DEGUCHI5
Swapnil Kumar5
Zachary W. Gyugyi5
Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5