DR

David John Royall

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
IC ICI: 2 patents #677 of 2,189Top 35%
📍 Guisborough, GB: #3 of 37 inventorsTop 9%
Overall (All Time): #1,276,888 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6307099 Production of terephthalic acid John A. Turner, Duncan Stuart Hugall, Graham Howard Jones, Duncan Woodcock 2001-10-23
6255510 Production of aromatic carboxylic acids and recovery of Co/Mn catalyst from ash Julie Bartlett, Roger Gaskell Fairhurst 2001-07-03
5426217 Process for the production of therephthalic acid James Lumsden Harvie 1995-06-20
4317919 Recovery of bromine from effluent gases in the oxidation of substituted aromatics to form aromatic carboxylic acids Peter J. Jones 1982-03-02