DS

David D. Simpson

QS Q.E.D. Environmental Systems: 2 patents #9 of 42Top 25%
QL Qinetiq Limited: 1 patents #284 of 677Top 45%
Overall (All Time): #1,451,227 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10662941 Modular pneumatic well pump system Antonio Ramirez 2020-05-26
9587483 Landfill well liquid level control pump Antonio Ramirez 2017-03-07
9357111 Casing Daniel John White, Clive Charles Woolley, Jim Maurice Abbey, Christopher Mark Driscoll 2016-05-31