DJ

David R. Marr, Jr.

📍 Sunbury-on-Thames, CO: #1 of 1 inventorsTop 100%
Overall (All Time): #1,247,062 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7597505 Roof bolt plate Herbert S. Price 2009-10-06
7510351 Method for supporting a subsurface material Herbert S. Price 2009-03-31
7293608 Liquid well stimulator Clifton M. Dudley 2007-11-13
5842442 Animal treatment apparatus 1998-12-01