Inventor · disambiguated record
David B. Needham
Also filed as: NEEDHAM DAVID B
9 granted patents·122 citations·filing 1988–2020
87Inventor score
Files withHALLIBURTON ENERGY SERV INC2HALLIBURTON ENERGY SERVICES INC2DAVIDSON INSTR INC1HEWLETT PACKARD DEVELOPMENT CO1NCR CO1
Top patents by PatentIndex Score
9 records- 0185US7305158B2Interferometric signal conditioner for measurement of absolute static displacements and dynamic displacements of a Fabry-Perot interferometerDAVIDSON INSTR INC·Filed 2005·Granted Dec 4, 2007·17 cites·26 claims
- 0279USD530016SLeg splintSROUFE JON W·Filed 2004·Granted Oct 10, 2006·32 cites·1 claims
- 0373US5167021AMultimedia interface device and methodNCR CO·Filed 1988·Granted Nov 24, 1992·41 cites·6 claims
- 0472US8115937B2Methods and apparatus for measuring multiple Fabry-Perot gapsNEEDHAM DAVID B·Filed 2007·Granted Feb 14, 2012·9 cites·18 claims
- 0570US7684051B2Fiber optic seismic sensor based on MEMS cantileverHALLIBURTON ENERGY SERV INC·Filed 2007·Granted Mar 23, 2010·9 cites·20 claims
- 0662US11118444B2Well tool pressure testingHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Sep 14, 2021·0 cites·18 claims
- 0760US7152174B2Method and apparatus for operating a server system including determining the power supplied by one of a plurality of power supplies by measuring voltage on a load share signal lineHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Dec 19, 2006·12 cites·20 claims
- 0853US7639368B2Tracking algorithm for linear array signal processor for Fabry-Perot cross-correlation pattern and method of using sameHALLIBURTON ENERGY SERV INC·Filed 2006·Granted Dec 29, 2009·2 cites·24 claims
- 0950US10597997B2Well tool pressure testingHALLIBURTON ENERGY SERVICES INC·Filed 2012·Granted Mar 24, 2020·0 cites·29 claims
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