SR

Stephen Roberts

PE Perpetuum: 2 patents #1 of 2Top 50%
📍 San Diego, CA: #530 of 2,883 inventorsTop 20%
🗺 California: #7,487 of 41,698 inventorsTop 20%
Overall (2011): #65,497 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8080906 Generator for converting mechanical vibrational energy into electrical energy Roy Freeland 2011-12-20
7999402 Electromechanical generator for converting mechanical vibrational energy into electrical energy Roy Freeland 2011-08-16