Inventor · disambiguated record
Richard David Pearson
Also filed as: PEARSON RICHARD · PEARSON RICHARD D · PEARSON RICHARD DAVID
28 granted patents·2 pending applications·1,483 citations·filing 1981–2019
97Inventor score
Top patents by PatentIndex Score
30 records- 0194US7339379B2Method of and apparatus for determining if a buried current carrying conductor is buried above predetermined minimum depthRADIODETECTION LTD·Filed 2006·Granted Mar 4, 2008·60 cites·9 claims
- 0293US7235980B2Cable detection apparatus and methodRADIODETECTION LTD·Filed 2006·Granted Jun 26, 2007·44 cites·6 claims
- 0392US6836231B2Signal generatorRADIODETECTION LTD·Filed 2003·Granted Dec 28, 2004·53 cites·2 claims
- 0492US6717392B2Signal generatorRADIODETECTION LTD·Filed 2001·Granted Apr 6, 2004·59 cites·6 claims
- 0590US7304480B1Radio mode selectivity block for a detector for detecting a buried current carrying conductorRADIODETECTION LTD·Filed 2006·Granted Dec 4, 2007·40 cites·6 claims
- 0689US7342537B2Method of and apparatus for detecting a current carrying conductorRADIODETECTION LTD·Filed 2006·Granted Mar 11, 2008·59 cites·9 claims
- 0789US6617856B1Electronic marker locator system and methodRADIODETECTION LTD·Filed 2002·Granted Sep 9, 2003·75 cites·20 claims
- 0886US6728662B2Method and system for remotely servicing a detection deviceRADIODETECTION LTD·Filed 2002·Granted Apr 27, 2004·63 cites·39 claims
- 0985US6777923B2System and method for detecting a concealed current carrying conductorRADIODETECTION LTD·Filed 2003·Granted Aug 17, 2004·54 cites·22 claims
- 1084US7403012B2Detector for detecting a buried current carrying conductor using electromagnetic radiation of predetermined frequenciesWORSLEY ROBERT·Filed 2006·Granted Jul 22, 2008·44 cites·20 claims
- 1183US4676783ARetractable safety needleUNIV VIRGINIA·Filed 1985·Granted Jun 30, 1987·210 cites·9 claims
- 1283US4592744ASelf-resheathing needle assemblyUNIV VIRGINIA·Filed 1985·Granted Jun 3, 1986·225 cites·30 claims
- 1382US6977508B2Cable detection apparatus and methodRADIODETECTION LTD·Filed 2003·Granted Dec 20, 2005·45 cites·14 claims
- 1481US8742747B2Detector for detecting a current carrying conductorPEARSON RICHARD DAVID·Filed 2010·Granted Jun 3, 2014·5 cites·20 claims
- 1581US4781692ARetractable safety needlesUNIV VIRGINIA·Filed 1987·Granted Nov 1, 1988·178 cites·13 claims
- 1678US8676522B2Detector for detecting a current carrying conductorPEARSON RICHARD DAVID·Filed 2010·Granted Mar 18, 2014·4 cites·11 claims
- 1777US7994770B2Transmitter of a system for detecting a buried conductorRADIODETECTION LTD·Filed 2009·Granted Aug 9, 2011·9 cites·24 claims
- 1872US4932944AIntravenous port injection and connector systemUNIV VIRGINIA·Filed 1988·Granted Jun 12, 1990·132 cites·6 claims
- 1962US8566043B2Detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductorROYLE JOHN MARK·Filed 2009·Granted Oct 22, 2013·6 cites·20 claims
- 2062US8183851B2Detector for calculating a depth of a buried conductorROYLE JOHN MARK·Filed 2009·Granted May 22, 2012·6 cites·23 claims
- 2162US7184951B2Methods and systems for generating phase-derivative soundRADIODETECTION LIMTED·Filed 2002·Granted Feb 27, 2007·10 cites·17 claims
- 2261US8115489B2Detector for detecting a current carrying conductor and a method of validating operation of the detectorPEARSON RICHARD DAVID·Filed 2009·Granted Feb 14, 2012·6 cites·20 claims
- 2361US4950249AHypodermic needle with reclosable safety capUNIV VIRGINIA·Filed 1989·Granted Aug 21, 1990·89 cites·5 claims
- 2458US8952677B2Locator for locating a current carrying conductorPEARSON RICHARD DAVID·Filed 2011·Granted Feb 10, 2015·2 cites·20 claims
- 2553US8125210B2Detector for calculating the depth of a buried conductorROYLE JOHN MARK·Filed 2009·Granted Feb 28, 2012·3 cites·36 claims
- 2643US11964549B2Multiple cooling circuit systems and methods for using themBP PLC·Filed 2019·Granted Apr 23, 2024·0 cites·17 claims
- 2742US9194978B2Electronic marker locator systems and methodsRADIODETECTION LTD·Filed 2013·Granted Nov 24, 2015·0 cites·20 claims
- 2837US2015097569A1Validating Operation of an Electronic Marker LocatorRADIODETECTION LTD·Filed 2013·Application pending·0 cites
- 2933US2013113529A1Signal GeneratorPEARSON RICHARD DAVID·Filed 2011·Application pending·0 cites
- 3025US4407800AProtozoacidal activity of phenothiazinesUNIV VIRGINIA·Filed 1981·Granted Oct 4, 1983·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →