Inventor · disambiguated record
Roger M. Langdon
Also filed as: LANGDON ROGER M · LANGDON ROGER MARTIN
20 granted patents·677 citations·filing 1978–2008
96Inventor score
Files withMARCONI CO LTD5MARCONI GEC LTD5BAE SYSTEMS PLC3GEN ELECTRIC CO PLC2BAE SYS ELECTRONICS LTD1
Top patents by PatentIndex Score
20 records- 0195US4420983AMass flow measurement deviceMARCONI CO LTD·Filed 1981·Granted Dec 20, 1983·76 cites·14 claims
- 0293US4383443ALiquid-level measurementMARCONI CO LTD·Filed 1981·Granted May 17, 1983·59 cites·10 claims
- 0389US4772786APhotothermal oscillator force sensorGEN ELECTRIC CO PLC·Filed 1986·Granted Sep 20, 1988·65 cites·16 claims
- 0488US4594898AForce sensorsFISHER CONTROLS INT·Filed 1984·Granted Jun 17, 1986·57 cites·13 claims
- 0588US4240285AMeasurement of the density of liquidsMARCONI CO LTD·Filed 1979·Granted Dec 23, 1980·43 cites·6 claims
- 0688US4213337ALiquid level sensing devicesMARCONI CO LTD·Filed 1978·Granted Jul 22, 1980·42 cites·2 claims
- 0785US7894125B2Acousto-optic devicesBAE SYSTEMS·Filed 2007·Granted Feb 22, 2011·9 cites·22 claims
- 0882US5164848AHelmet mounted displayMARCONI GEC LTD·Filed 1990·Granted Nov 17, 1992·102 cites·19 claims
- 0972US5323638ASensor apparatusMARCONI GEC LTD·Filed 1992·Granted Jun 28, 1994·35 cites·16 claims
- 1067US5510890ALaser radar with reference beam storageMARCONI GEC LTD·Filed 1993·Granted Apr 23, 1996·41 cites·9 claims
- 1165US5353109AReceiver-transmitter for a target identification systemMARCONI GEC LTD·Filed 1993·Granted Oct 4, 1994·42 cites·20 claims
- 1261US6731570B1Sound detectionBAE SYS ELECTRONICS LTD·Filed 1999·Granted May 4, 2004·26 cites·12 claims
- 1358US7301610B2Gas velocity sensorBAE SYSTEMS PLC·Filed 2004·Granted Nov 27, 2007·7 cites·36 claims
- 1451US4596153AVane for use in monitoring flow of a fluidMARCONI CO LTD·Filed 1983·Granted Jun 24, 1986·12 cites·16 claims
- 1550US5059781AOrientation monitoring apparatusMARCONI GEC LTD·Filed 1990·Granted Oct 22, 1991·19 cites·27 claims
- 1647US7114393B2Method and apparatus for laser vibrometryBAE SYSTEMS PLC·Filed 2003·Granted Oct 3, 2006·6 cites·13 claims
- 1742US7986398B2Gas velocity sensorBAE SYSTEMS PLC·Filed 2008·Granted Jul 26, 2011·0 cites·25 claims
- 1842US6285288B1Remote air detectionMARCONI ELECTRONIC SYST LTD·Filed 1999·Granted Sep 4, 2001·21 cites·20 claims
- 1940US5026162AOptical interference position measurement systemGEN ELECTRIC CO PLC·Filed 1989·Granted Jun 25, 1991·8 cites·7 claims
- 2038US4887033AMagnetometer having coil formed by two spiral shaped conductorsGEN MOTORS CORP·Filed 1988·Granted Dec 12, 1989·7 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →