Assignee
DOWNING JR JOHN P
US·4 granted patents·50 citations·filing 1988–2010
Top patents by PatentIndex Score
4 records- 0173US4841157AOptical backscatter turbidimeter sensorDOWNING JR JOHN P·Filed 1988·Granted Jun 20, 1989·35 cites·13 claims
- 0262US8502452B2High-stability light source system and method of manufacturingDOWNING JR JOHN P·Filed 2010·Granted Aug 6, 2013·1 cites·53 claims
- 0349US7767947B2Semiconductor light source with optical feedbackDOWNING JR JOHN P·Filed 2005·Granted Aug 3, 2010·1 cites·20 claims
- 0446US5207090AParticle sensor for stream bedDOWNING JR JOHN P·Filed 1991·Granted May 4, 1993·13 cites·21 claims
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