Inventor · disambiguated record
Ralph M. D'Angelo
Also filed as: D ANGELO RALPH · D ANGELO RALPH M · D ANGELO RALPH MICHAEL
20 granted patents·565 citations·filing 1980–2022
95Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP15BELL TELEPHONE LABOR INC1D ANGELO RALPH M1HSU CHAUR-JIAN1MACKAY BRUCE A1
Top patents by PatentIndex Score
20 records- 0191US5521882AMeasurement of formation characteristics using acoustic borehole tool having sources of different frequenciesSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted May 28, 1996·100 cites·20 claims
- 0290US6678616B1Method and tool for producing a formation velocity image data setSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Jan 13, 2004·118 cites·78 claims
- 0389US6510389B1Acoustic detection of stress-induced mechanical damage in a borehole wallSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Jan 21, 2003·43 cites·17 claims
- 0484US11531132B2Guided mode beamforming for probing open-hole and cased-hole well environmentsSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Dec 20, 2022·2 cites·34 claims
- 0583US10126454B2Method and system for fracture detection using acoustic wavesSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Nov 13, 2018·3 cites·26 claims
- 0682US9625599B2Downhole elastic anisotropy measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Apr 18, 2017·7 cites·3 claims
- 0782US6643221B1Structures and methods for damping tool waves particularly for acoustic logging toolsSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Nov 4, 2003·62 cites·40 claims
- 0881US7095676B2Assessing a solids deposit in an oilfield pipeSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Aug 22, 2006·19 cites·22 claims
- 0979US8215393B2Method for treating well bore within a subterranean formationMACKAY BRUCE A·Filed 2009·Granted Jul 10, 2012·20 cites·33 claims
- 1078US5412990AMethod for measuring cement thickening timesSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted May 9, 1995·49 cites·19 claims
- 1177US11899153B2Guided mode beamforming for probing open-hole and cased-hole well environmentsSCHLUMBERGER TECHNOLOGY CORP·Filed 2022·Granted Feb 13, 2024·0 cites·6 claims
- 1277US8321133B2Measurement of sound speed of downhole fluid utilizing tube wavesHSU CHAUR-JIAN·Filed 2007·Granted Nov 27, 2012·18 cites·35 claims
- 1374US5274604AMethod for spatially filtering signals representing formation and channel echoes in a borehole environmentSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted Dec 28, 1993·45 cites·27 claims
- 1473US6018496AMethod and apparatus for hydraulic isolation determinationSCHLUMBERGER TECHNOLOGY CORP·Filed 1995·Granted Jan 25, 2000·68 cites·56 claims
- 1569US10295692B2Fracture detection and localization using acoustic reflectionsSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted May 21, 2019·1 cites·14 claims
- 1665US12000973B2Through tubing near-field sonic measurements to map outer casing annular content heterogeneitiesSCHLUMBERGER TECHNOLOGY CORP·Filed 2022·Granted Jun 4, 2024·0 cites·17 claims
- 1763US9260958B2System and method for acoustic imaging using a transducer arraySCHLUMBERGER TECHNOLOGY CORP·Filed 2012·Granted Feb 16, 2016·1 cites·20 claims
- 1851US8611183B2Measuring standoff and borehole geometryWINKLER KENNETH WILLIAM·Filed 2007·Granted Dec 17, 2013·5 cites·25 claims
- 1949US9328606B2Method and device to measure perforation tunnel dimensionsD ANGELO RALPH M·Filed 2011·Granted May 3, 2016·1 cites·26 claims
- 2033US4302982AKey and keyway arrangementBELL TELEPHONE LABOR INC·Filed 1980·Granted Dec 1, 1981·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →