Inventor · disambiguated record
John F. Schipper
Also filed as: FERRELL LEGAL REPRESENTATIVE FRANCES · SCHIPPER JOHN · SCHIPPER JOHN F
72 granted patents·10,186 citations·filing 1976–2010
99Inventor score
Files withTRIMBLE NAVIGATION LTD45NASA7TRIMBLE NAVIGATION3US NAT AERONAUTICS AND SPACE A3MOBIGENCE INC2
Top patents by PatentIndex Score
72 records- 0199US5552772ALocation of emergency service workersTRIMBLE NAVIGATION LTD·Filed 1993·Granted Sep 3, 1996·534 cites·22 claims
- 0298US6411899B2Position based personal digital assistantTRIMBLE NAVIGATION LTD·Filed 2001·Granted Jun 25, 2002·444 cites·50 claims
- 0398US6282362B1Geographical position/image digital recording and display systemTRIMBLE NAVIGATION LTD·Filed 1997·Granted Aug 28, 2001·967 cites·18 claims
- 0498US5938721APosition based personal digital assistantTRIMBLE NAVIGATION LTD·Filed 1996·Granted Aug 17, 1999·1.3k cites·35 claims
- 0598US5751245AVehicle route and schedule exception reporting systemTRIMBLE NAVIGATION LTD·Filed 1996·Granted May 12, 1998·580 cites·18 claims
- 0698US5568152AIntegrated image transfer for remote target locationTRIMBLE NAVIGATION LTD·Filed 1994·Granted Oct 22, 1996·160 cites·3 claims
- 0797US6266612B1Position based personal digital assistantTRIMBLE NAVIGATION LTD·Filed 1999·Granted Jul 24, 2001·496 cites·36 claims
- 0897US5936572APortable hybrid location determination systemTRIMBLE NAVIGATION LTD·Filed 1997·Granted Aug 10, 1999·406 cites·18 claims
- 0996US5969595ASecurity for transport vehicles and cargoTRIMBLE NAVIGATION LTD·Filed 1996·Granted Oct 19, 1999·165 cites·74 claims
- 1096US5568119AArrestee monitoring with variable site boundariesTRIMBLE NAVIGATION LTD·Filed 1993·Granted Oct 22, 1996·498 cites·6 claims
- 1195US6268804B1Dynamic monitoring of vehicle separationTRIMBLE NAVIGATION LTD·Filed 2000·Granted Jul 31, 2001·191 cites·28 claims
- 1295US6088650AVehicle tracker, mileage-time monitor and calibratorTRIMBLE NAVIGATION LTD·Filed 1999·Granted Jul 11, 2000·95 cites·24 claims
- 1394US5699255AMap transmission for in-vehicle navigation system with dynamic scale/detail adjustmentTRIMBLE NAVIGATION LTD·Filed 1995·Granted Dec 16, 1997·306 cites·19 claims
- 1494US4909631AMethod for film thickness and refractive index determinationTAN RAUL Y·Filed 1987·Granted Mar 20, 1990·208 cites·7 claims
- 1593US5892454AHybrid monitoring of location of a site confineeTRIMBLE NAVIGATION LTD·Filed 1996·Granted Apr 6, 1999·437 cites·18 claims
- 1693US5799082ASecure authentication of imagesTRIMBLE NAVIGATION LTD·Filed 1995·Granted Aug 25, 1998·191 cites·19 claims
- 1793US5764770AImage authentication patterningTRIMBLE NAVIGATION LTD·Filed 1997·Granted Jun 9, 1998·225 cites·34 claims
- 1892US5828694ADetermination of multipath tracking errorTRIMBLE NAVIGATION LTD·Filed 1996·Granted Oct 27, 1998·138 cites·17 claims
- 1992US5754657AAuthentication of a message sourceTRIMBLE NAVIGATION LTD·Filed 1997·Granted May 19, 1998·220 cites·42 claims
- 2092US5731786ACompaction of SATPS information for subsequent signal processingTRIMBLE NAVIGATION LTD·Filed 1994·Granted Mar 24, 1998·155 cites·21 claims
- 2191US8290696B1Air traffic management evaluation toolSRIDHAR BANAVAR·Filed 2010·Granted Oct 16, 2012·76 cites·11 claims
- 2291US6198930B1Automatic cellular phone trackingTRIMBLE NAVIGATION LTD·Filed 1997·Granted Mar 6, 2001·159 cites·10 claims
- 2391US6038444AMethod and apparatus for advising cellphone users of possible actions to avoid dropped callsTRIMBLE NAVIGATION LTD·Filed 1997·Granted Mar 14, 2000·185 cites·18 claims
- 2491US5987136AImage authentication patterningTRIMBLE NAVIGATION LTD·Filed 1997·Granted Nov 16, 1999·183 cites·30 claims
- 2591US5929752AClandestine missing vehicle location reporting using cellular channelsTRIMBLE NAVIGATION LTD·Filed 1997·Granted Jul 27, 1999·111 cites·22 claims
- 2689US7704547B1Carbon nanotube growth density controlNASA·Filed 2006·Granted Apr 27, 2010·13 cites·14 claims
- 2789US5960337AMethod for responding to an emergency eventTRIMBLE NAVIGATION LTD·Filed 1997·Granted Sep 28, 1999·121 cites·20 claims
- 2889US5581259ALife for old mapsTRIMBLE NAVIGATION LTD·Filed 1994·Granted Dec 3, 1996·75 cites·44 claims
- 2988US6166626AClandestine missing vehicle location reporting using cellular channelsTRIMBLE NAVIGATION LTD·Filed 1999·Granted Dec 26, 2000·131 cites·22 claims
- 3088US4059759APassive and active pulse stacking scheme for pulse shapingUS ENERGY·Filed 1976·Granted Nov 22, 1977·50 cites·38 claims
- 3187US6353796B1Vehicle tracker, mileage-time monitor and calibratorTRIMBLE NAVIGATION LTD·Filed 2000·Granted Mar 5, 2002·60 cites·28 claims
- 3287US6067031ADynamic monitoring of vehicle separationTRIMBLE NAVIGATION LTD·Filed 1997·Granted May 23, 2000·137 cites·11 claims
- 3386US7702427B1Air traffic management evaluation toolUS NAT AERONAUTICS AND SPACE A·Filed 2004·Granted Apr 20, 2010·98 cites·12 claims
- 3485US5669061AAutomatic cellular phone trackingTRIMBLE NAVIGATION LTD·Filed 1994·Granted Sep 16, 1997·138 cites·22 claims
- 3583US6031882AAdaptive equalization of multipath signalsTRIMBLE NAVIGATION LTD·Filed 1997·Granted Feb 29, 2000·66 cites·2 claims
- 3682US5630208AAdaptive multipath equalizationTRIMBLE NAVIGATION LTD·Filed 1994·Granted May 13, 1997·70 cites·23 claims
- 3781US5987378AVehicle tracker mileage-time monitor and calibratorTRIMBLE NAVIGATION LTD·Filed 1996·Granted Nov 16, 1999·64 cites·34 claims
- 3878US5986604ASurvey coordinate transformation optimizationTRIMBLE NAVIGATION LTD·Filed 1997·Granted Nov 16, 1999·68 cites·20 claims
- 3977US6847749B1Diffraction-based optical switchNASA·Filed 2002·Granted Jan 25, 2005·22 cites·18 claims
- 4076US7561946B1Real time correction of aircraft flight configurationNASA·Filed 2005·Granted Jul 14, 2009·12 cites·20 claims
- 4175US6092193AAuthentication of accumulated instrument dataTRIMBLE NAVIGATION LTD·Filed 1997·Granted Jul 18, 2000·90 cites·17 claims
- 4274US5815118ARubber sheeting of a mapTRIMBLE NAVIGATION LTD·Filed 1996·Granted Sep 29, 1998·49 cites·12 claims
- 4369US5614913AOptimization of survey coordinate transformationsTRIMBLE NAVIGATION·Filed 1995·Granted Mar 25, 1997·46 cites·15 claims
- 4468US7529633B1Application of carbon nanotube hold-off voltage for determining gas compositionUS NAT AERONAUTICS AND SPACE A·Filed 2005·Granted May 5, 2009·2 cites·12 claims
- 4567US8489181B1Heart electrical actions as biometric indiciaSCHIPPER JOHN F·Filed 2009·Granted Jul 16, 2013·11 cites·9 claims
- 4667US6930775B1Diffraction-based optical correlatorNASA·Filed 2002·Granted Aug 16, 2005·8 cites·50 claims
- 4765US6072428ALocation determination using doppler and pseudorange measurements from fewer than four satellitesTRIMBLE NAVIGATION LTD·Filed 1998·Granted Jun 6, 2000·33 cites·16 claims
- 4865US5577122ASecure communication of informationTRIMBLE NAVIGATION LTD·Filed 1994·Granted Nov 19, 1996·51 cites·39 claims
- 4962US6646634B2Touch panel coordinate determinationMOBIGENCE INC·Filed 2001·Granted Nov 11, 2003·9 cites·28 claims
- 5062US5974689AChemical drying and cleaning systemGARY W FARRELL·Filed 1998·Granted Nov 2, 1999·30 cites·34 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
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