DC

David Cheng Cheng

PG Pdg Product Design Group: 5 patents #1 of 7Top 15%
PD Pdg: 2 patents #2 of 13Top 20%
📍 Delta, CA: #41 of 344 inventorsTop 15%
Overall (All Time): #743,693 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8579315 Reconfigurable tilt wheelchair Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2013-11-12
8511699 Reconfigurable tilt wheelchair Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2013-08-20
8424896 Telescoping crossbar assembly Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2013-04-23
8336898 Reconfigurable tilt wheelchair Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2012-12-25
8132823 Reconfigurable tilt wheelchair Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2012-03-13
7871094 Reconfigurable tilt wheelchair Nancy Balcom, Louis Belanger, Torr Brown, Janusz Krawczynski, Phil Mundy +1 more 2011-01-18
D589411 Wheelchair member Torr Brown, Chris Morse, Jae Won SIM 2009-03-31