Assignee
JOHNSTON RAY L
US·2 granted patents·1 pending application·6 citations·filing 2001–2011
Top patents by PatentIndex Score
3 records- 0188US10053595B2Additives for improving drag injectionJOHNSTON RAY L·Filed 2011·Granted Aug 21, 2018·5 cites·12 claims
- 0253US9234631B2Drag reducing polymers for low molecular weight liquids applicationsJOHNSTON RAY L·Filed 2008·Granted Jan 12, 2016·1 cites·14 claims
- 0338US2002065352A1Drag-reducing polymers and suspensions thereofJOHNSTON RAY L·Filed 2001·Application pending·0 cites
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →