RJ

Roy B. Jeffries

TI The Shirley Institute: 1 patents #2 of 9Top 25%
📍 Cheadle, GB: #1 of 1 inventorsTop 100%
Overall (All Time): #2,246,520 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5871618 Apparatus for reclaiming fuel oil from waste oil Sung-Rae Lee, Henry Kong, Norman Arrison, Wlodzimierz P. Rzazewski 1999-02-16
4367327 Breathable, non-porous polyurethane film prepared from a low molecular weight difunctional compound, a polyethylene glycol and a diisocyanate James R. Holker, George Robert Lomax 1983-01-04