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Derek O'Donnell — 2 Patents

TPTioxide Group Plc: 2 patents #6 of 38Top 20%
Cross, GB: #47 of 150 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Derek O'Donnell has been granted 2 US patents while listed as an inventor at Tioxide Group Plc. All of these patents were granted in 1984. Derek O'Donnell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Derek O'Donnell in Cross, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4447270 Pigments and their preparation by coating with oxides of Zr-Si-Al Peter B. Howard 1984-05-08
4447271 Pigments and their preparation by coating with oxides of Si-Zr-Al Peter B. Howard 1984-05-08

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