JD

John Hincks Duke

📍 Providence, RI: #98 of 1,397 inventorsTop 8%
🗺 Rhode Island: #433 of 6,211 inventorsTop 7%
Overall (All Time): #376,923 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
11097150 Three-dimensional rocking chair with variable curvature base for abdominal exercise 2021-08-24
D904536 Exercise rocking chair Jonathan Michael Haisman 2020-12-08
9776710 Wingtip vortex drag reduction method using backwash convergence 2017-10-03
9709024 Vortex energy recovery turbine 2017-07-18
9586084 Exercise rocking chair 2017-03-07
8978655 Integral valve effect respirator Ritu Goel 2015-03-17
8939804 Wave-powered autonomous plankton collector 2015-01-27
8421260 Hydrokinetic turbine for low velocity currents 2013-04-16
D515850 Cantilever table 2006-02-28
6602168 Flexion extension exerciser 2003-08-05
6407749 Combined scroll and zoom method and apparatus 2002-06-18
4884800 Rowing machine 1989-12-05
4846460 Rowing machine 1989-07-11