David L. Ruffini

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Pickerington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
LED PAPI with condensation protection
- Patent number 9,228,721
- Issue date Jan 5, 2016
- ADB Airfield Solutions
- John Hesch
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Light emitting diode precision approach path indicator (LED PAPI)
- Patent number 8,550,658
- Issue date Oct 8, 2013
- ADB Airfield Solutions
- Richard Hansler
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

Information Patent Application
LED PAPI WITH CONDENSATION PROTECTION
- Publication number 20130334984
- Publication date Dec 19, 2013
- John Hesch
- F21 - LIGHTING
Information Patent Application
LIGHT EMITTING DIODE PRECISION APPROACH PATH INDICATOR (LED PAPI)
- Publication number 20110285294
- Publication date Nov 24, 2011
- Richard Hansler
- F21 - LIGHTING