RJ

Robert G. Johnston, Jr.

DH Dei Headquarters: 1 patents #1 of 5Top 20%
📍 Edmonton, CA: #41 of 226 inventorsTop 20%
Overall (2011): #181,098 of 364,097Top 50%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8014545 Ceiling or wall-mounted loudspeaker system with anti-diffraction wave launch device Matthew Grant, Timothy A. Gladwin 2011-09-06