DD

Douglas C. Draper

OC Oregon Graduate Center: 1 patents #8 of 26Top 35%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Portland, OR: #4,612 of 9,213 inventorsTop 55%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,232,141 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6315572 Method and system for computerized authoring, learning, and evaluation Terry Owens, Donald J. West, Duane R. Winden, William M. Bancroft 2001-11-13
4806729 Laser wax joinery method and apparatus J. Fred Holmes, John Miles Hunt, Todd L. Cloninger, Tom R. Mersereau, Michael J. Hosler 1989-02-21