Inventor · disambiguated record
David G. Lawrence
Also filed as: LAWRENCE DAVID · LAWRENCE DAVID G · LAWRENCE DAVID GARY
52 granted patents·6 pending applications·1,046 citations·filing 1995–2025
98Inventor score
Top patents by PatentIndex Score
58 records- 0197US6373432B1System using leo satellites for centimeter-level navigationUNIV LELAND STANFORD JUNIOR·Filed 2000·Granted Apr 16, 2002·287 cites·19 claims
- 0291US11445373B1Validation of position, navigation, time signalsSATELLES INC·Filed 2019·Granted Sep 13, 2022·8 cites·34 claims
- 0391US9059784B2Space based authentication utilizing signals from low and medium earth orbitBOEING CO·Filed 2014·Granted Jun 16, 2015·16 cites·19 claims
- 0490US8570216B2Differential correction system enhancement leverages roving receivers enabled for a non-GPS, secondary PN and T signal to characterize local errorsGUTT GREGORY M·Filed 2011·Granted Oct 29, 2013·21 cites·36 claims
- 0589US7586438B1Navigation with satellite communicationsNOVARIANT INC·Filed 2005·Granted Sep 8, 2009·31 cites·18 claims
- 0689US6880643B1System and method for land-levelingNOVARIANT INC·Filed 2003·Granted Apr 19, 2005·52 cites·27 claims
- 0786US8977843B2Geolocating network nodes in attenuated environments for cyber and network security applicationsGUTT GREGORY M·Filed 2011·Granted Mar 10, 2015·10 cites·28 claims
- 0885US9201131B2Secure routing based on degree of trustWHELAN DAVID A·Filed 2012·Granted Dec 1, 2015·8 cites·23 claims
- 0985US7504995B2Method and system for circular polarization correction for independently moving GNSS antennasNOVARIANT INC·Filed 2004·Granted Mar 17, 2009·45 cites·38 claims
- 1085US7271766B2Satellite and local system position determinationNOVARIANT INC·Filed 2004·Granted Sep 18, 2007·52 cites·19 claims
- 1185US6570534B2Low cost system and method for making dual band GPS measurementsINTEGRINAUTICS CORP·Filed 2002·Granted May 27, 2003·63 cites·18 claims
- 1284US9088420B2System and method for improved geothentication based on a hash functionBOEING CO·Filed 2012·Granted Jul 21, 2015·8 cites·30 claims
- 1383US9178894B2Secure routing based on the physical locations of routersBOEING CO·Filed 2013·Granted Nov 3, 2015·8 cites·13 claims
- 1483US7548804B2Emulation to provide multiple applications in mobile equipmentNOVARIANT INC·Filed 2005·Granted Jun 16, 2009·20 cites·54 claims
- 1581US5572218ASystem and method for generating precise position determinationsINTEGRINAUTICS·Filed 1995·Granted Nov 5, 1996·99 cites·25 claims
- 1680US12028714B1Wireless signal validation using an independent wireless data linkSATELLES INC·Filed 2021·Granted Jul 2, 2024·1 cites·19 claims
- 1779US7656352B2Troposphere corrections for ground based positioning systemsNOVARIANT INC·Filed 2005·Granted Feb 2, 2010·15 cites·26 claims
- 1878US7535402B1Navigation with satellite communicationsNOVARIANT INC·Filed 2005·Granted May 19, 2009·13 cites·23 claims
- 1978US6762714B2Low cost system and method for making dual band GPS measurementsFiled 2003·Granted Jul 13, 2004·44 cites·35 claims
- 2077US7511667B2Precise local positioning systems using ground-based transmittersNOVARIANT INC·Filed 2006·Granted Mar 31, 2009·13 cites·19 claims
- 2177US7385554B2Satellite and local system position determinationNOVARIANT INC·Filed 2006·Granted Jun 10, 2008·11 cites·15 claims
- 2276US9523763B2Satellite-based integer cycle ambiguity resolution of local medium wave radio signalsBOEING CO·Filed 2013·Granted Dec 20, 2016·6 cites·20 claims
- 2376US7683830B2Antenna combination technique for multi-frequency receptionNOVARIANT INC·Filed 2006·Granted Mar 23, 2010·13 cites·33 claims
- 2475US8769267B2Geothentication based on new network packet structureGUTT GREGORY M·Filed 2012·Granted Jul 1, 2014·4 cites·34 claims
- 2574US8949941B2Geothentication based on network rangingWHELAN DAVID A·Filed 2011·Granted Feb 3, 2015·4 cites·21 claims
- 2673US10088312B2Geolocation using acquisition signalsBOEING CO·Filed 2013·Granted Oct 2, 2018·4 cites·22 claims
- 2772US7489270B2GNSS line bias measurement system and methodNOVARIANT INC·Filed 2005·Granted Feb 10, 2009·10 cites·14 claims
- 2871US11889312B2Validation of position, navigation, time signalsSATELLES INC·Filed 2022·Granted Jan 30, 2024·0 cites·41 claims
- 2971US8910246B2Contextual-based virtual data boundariesWHELAN DAVID A·Filed 2012·Granted Dec 9, 2014·3 cites·43 claims
- 3070US8837728B2Server algorithms to improve space based authenticationENGE PER K·Filed 2012·Granted Sep 16, 2014·3 cites·16 claims
- 3167US6882314B2Carrier-based differential-position determination using multi-frequency pseudolitesNOVARIANT INC·Filed 2002·Granted Apr 19, 2005·24 cites·6 claims
- 3266US12032075B2Satellite-based source of positioning system-independent position navigation and timeSATELLES INC·Filed 2021·Granted Jul 9, 2024·0 cites·26 claims
- 3366US7310064B2Rebroadcasting method and system for navigation signalsNOVARIANT INC·Filed 2004·Granted Dec 18, 2007·18 cites·23 claims
- 3466US2025293768A1Low cost, size, weight, and power (cswap) geolocation capability utilizing signal characteristics passed through to backhaul networkIRIDIUM COMMUNICATIONS INC·Filed 2025·Application pending·0 cites
- 3563US7605749B2Multifrequency line biases for multifrequency GNSS receiversNOVARIANT INC·Filed 2006·Granted Oct 20, 2009·5 cites·34 claims
- 3663US7468697B2Self-surveying wideband ground transmittersNOVARIANT INC·Filed 2006·Granted Dec 23, 2008·5 cites·24 claims
- 3763US7333053B2Signal path system and method for a ranging signal receiverNOVARIANT INC·Filed 2004·Granted Feb 19, 2008·19 cites·26 claims
- 3863US6784830B1Method for processing in dual frequency civilian GPS receiverINTEGRINAUTICS CORP·Filed 2003·Granted Aug 31, 2004·20 cites·22 claims
- 3962US7561967B2Navigation receiver with functional extensibilityNOVARIANT INC·Filed 2005·Granted Jul 14, 2009·5 cites·21 claims
- 4061US12335733B1Wireless signal validation using a one-way function and an initially unknown inputSATELLES INC·Filed 2021·Granted Jun 17, 2025·0 cites·20 claims
- 4161US12267147B2Low cost, size, weight, and power (CSWAP) geolocation capability utilizing signal characteristics passed through to backhaul networkSATELLES INC·Filed 2022·Granted Apr 1, 2025·0 cites·42 claims
- 4261US8584205B2Guard spot beams to deter satellite-based authentication system spoofingLAWRENCE DAVID G·Filed 2011·Granted Nov 12, 2013·2 cites·20 claims
- 4359US7286084B2Multiple antenna multi-frequency measurement systemNOVARIANT INC·Filed 2006·Granted Oct 23, 2007·3 cites·5 claims
- 4459US2025284010A1Authentication of position, navigation, and timing (pnt) measurements and solutions via validatred measurements and solutionsSATELLES INC·Filed 2024·Application pending·0 cites
- 4557US10728032B2Server algorithms to improve space based authenticationBOEING CO·Filed 2017·Granted Jul 28, 2020·0 cites·20 claims
- 4654US7760136B2Modular multi-frequency GNSS receiverNOVARIANT INC·Filed 2006·Granted Jul 20, 2010·2 cites·96 claims
- 4754US7653399B2Wide area differential satellite positioning with local area updatesNOVARIANT INC·Filed 2005·Granted Jan 26, 2010·2 cites·37 claims
- 4853US9698987B2Server algorithms to improve space based authenticationBOEING CO·Filed 2014·Granted Jul 4, 2017·0 cites·20 claims
- 4953US7268727B2Method and apparatus for improved position, velocity, orientation or angular rate sensorMONTGOMERY PAUL YALDEN·Filed 2004·Granted Sep 11, 2007·12 cites·83 claims
- 5049US7023381B2Multi-frequency pseudolites for carrier-based differential-position determinationNOVARIANT INC·Filed 2003·Granted Apr 4, 2006·8 cites·3 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →