DA

David P. Astles

SL Shell Research Limited: 3 patents #13 of 163Top 8%
SB Shell Internationale Research Maatschappij B.V.: 1 patents #62 of 211Top 30%
Overall (All Time): #1,296,643 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5231072 Sulphonamide herbicides Andrew Flood, Trevor William Newton, David C. Hunter 1993-07-27
5158599 Sulphonamide herbicides Andrew Flood, Trevor William Newton, David C. Hunter 1992-10-27
5139563 Herbicidal compounds Andrew Flood, Alastair McArthur, Trevor William Newton, John E. Spencer, David C. Hunter 1992-08-18
5071468 Triazolopyrimidine herbicides John E. Spencer, Andrew Flood 1991-12-10