Inventor · disambiguated record
David A. Luce
Also filed as: LUCE DAVID A · LUCE DAVID ALAN
56 granted patents·4 pending applications·833 citations·filing 1974–2020
99Inventor score
Top patents by PatentIndex Score
60 records- 0195US4365533AMusical instrumentCLARK JR MELVILLE·Filed 1976·Granted Dec 28, 1982·58 cites·111 claims
- 0292US3997863AHelically wound pitch-determining element for electronic musical instrumentNORLIN MUSIC INC·Filed 1975·Granted Dec 14, 1976·33 cites·10 claims
- 0387US7771353B2Method and apparatus for tear film measurementREICHERT INC·Filed 2006·Granted Aug 10, 2010·45 cites·9 claims
- 0478US4503745AMusical instrumentCLARK JR MELVILLE·Filed 1982·Granted Mar 12, 1985·18 cites·10 claims
- 0576US7004902B2Method and apparatus for measuring biomechanical characteristics of corneal tissueREICHERT INC·Filed 2003·Granted Feb 28, 2006·74 cites·27 claims
- 0674US7909765B2Method and apparatus for determining true intraocular pressureREICHERT INC·Filed 2008·Granted Mar 22, 2011·9 cites·7 claims
- 0773US7481767B2Method and apparatus for determining true intraocular pressureREICHERT INC·Filed 2005·Granted Jan 27, 2009·9 cites·5 claims
- 0870US7798962B2Method and apparatus for measuring corneal resistanceREICHERT INC·Filed 2005·Granted Sep 21, 2010·7 cites·7 claims
- 0969US5301004AMethod and apparatus for determining the optical properties of a lensLEICA INC·Filed 1992·Granted Apr 5, 1994·27 cites·56 claims
- 1069US4027569AKeyboard for an electronic musical instrument employing variable capacitorsNORLIN MUSIC INC·Filed 1975·Granted Jun 7, 1977·13 cites·17 claims
- 1169US3974461AWide dynamic range voltage controlled filter for electronic musical instrumentsMOOG MUSIC INC·Filed 1974·Granted Aug 10, 1976·21 cites·14 claims
- 1268US6817981B2Method for eliminating error in tonometric measurementsREICHERT INC·Filed 2002·Granted Nov 16, 2004·39 cites·18 claims
- 1368US4099439AElectronic musical instrument with dynamically responsive keyboardNORLIN MUSIC INC·Filed 1975·Granted Jul 11, 1978·13 cites·18 claims
- 1467US10806342B2Determination of continuous dynamic corneal viscoelastic bending moduliREICHERT INC·Filed 2016·Granted Oct 20, 2020·1 cites·19 claims
- 1567US6623429B2Hand-held non-contact tonometerREICHERT INC·Filed 2001·Granted Sep 23, 2003·43 cites·11 claims
- 1666US6419631B1Non-contact tonometry methodLEICA MICROSYSTEMS INC·Filed 2000·Granted Jul 16, 2002·37 cites·4 claims
- 1765US4334195AVoltage controlled attenuatorNORLIN IND INC·Filed 1980·Granted Jun 8, 1982·13 cites·15 claims
- 1865US4291604AMemory override system for programmed electronic synthesizerNORLIN IND INC·Filed 1979·Granted Sep 29, 1981·11 cites·19 claims
- 1962US6875175B2Duel mode non-contact tonometerREICHERT INC·Filed 2002·Granted Apr 5, 2005·25 cites·8 claims
- 2057US3991645AElectronic musical instrument with exponential keyboard and voltage controlled oscillatorNORLIN MUSIC INC·Filed 1975·Granted Nov 16, 1976·8 cites·10 claims
- 2155US6726625B2Non-contact tonometer having improved air pumpREICHERT INC·Filed 2002·Granted Apr 27, 2004·10 cites·29 claims
- 2254US8800347B2Tonometer calibration toolBONAVENTURA RUSSELL·Filed 2011·Granted Aug 12, 2014·2 cites·11 claims
- 2354US4046049AFoot control apparatus for electronic musical instrumentNORLIN MUSIC INC·Filed 1974·Granted Sep 6, 1977·12 cites·9 claims
- 2454US3981218APreset system for electronic musical instrumentNORLIN MUSIC INC·Filed 1974·Granted Sep 21, 1976·8 cites·11 claims
- 2552US4463647AMusical instrumentCLARK JR MELVILLE·Filed 1982·Granted Aug 7, 1984·13 cites·52 claims
- 2651US9289124B2Tonometer calibration toolREICHERT INC·Filed 2014·Granted Mar 22, 2016·0 cites·4 claims
- 2751US6679842B2Tonometer calibration toolREICHERT INC·Filed 2002·Granted Jan 20, 2004·4 cites·32 claims
- 2851USD369112SLensmeterLEICA INC·Filed 1994·Granted Apr 23, 1996·6 cites·1 claims
- 2950USD974144SHandleFAR EAST BROKERS AND CONSULTANTS INC·Filed 2020·Granted Jan 3, 2023·1 cites·1 claims
- 3048US4352311ASynthesizer preset editing techniquesNORLIN IND INC·Filed 1980·Granted Oct 5, 1982·5 cites·24 claims
- 3148US4145943AElectronic musical instrument capable of generating a string chorus soundNORLIN MUSIC INC·Filed 1976·Granted Mar 27, 1979·5 cites·25 claims
- 3247US3943456ASignal generator for electronic musical instrument, employing variable rate integratorMOOG MUSIC INC·Filed 1974·Granted Mar 9, 1976·6 cites·11 claims
- 3346US6616609B2Method for optimizing piston diameter in a non-contact tonometer, and non-contact tonometer having fluid pump designed by said methodREICHERT INC·Filed 2001·Granted Sep 9, 2003·8 cites·4 claims
- 3446US4881807AOptical alignment systemCAMBRIDGE INSTR INC·Filed 1988·Granted Nov 21, 1989·31 cites·27 claims
- 3545US6042232AAutomatic optometer evaluation method using data over a wide range of focusing positionsLEICA MICROSYSTEMS INC·Filed 1999·Granted Mar 28, 2000·42 cites·27 claims
- 3645US5587748AJoystick override control for an ophthalmic instrumentLEICA INC·Filed 1994·Granted Dec 24, 1996·38 cites·9 claims
- 3745US5471260AJoystick for an ophthalmic instrument where vertical movement is controlled by rotating the joystickLEICA INC·Filed 1994·Granted Nov 28, 1995·39 cites·8 claims
- 3845US4028979AMultiplexer for electronic musical instrumentNORLIN MUSIC INC·Filed 1975·Granted Jun 14, 1977·6 cites·13 claims
- 3944US4228717AElectronic musical instrument capable of generating a chorus soundNORLIN IND INC·Filed 1978·Granted Oct 21, 1980·4 cites·4 claims
- 4042US3969969AMusical instrument with means for scanning keysCLARK JR MELVILLE·Filed 1974·Granted Jul 20, 1976·5 cites·23 claims
- 4139US8613704B2Subsystems and methods for non-contact corneal deformationLUCE DAVID A·Filed 2011·Granted Dec 24, 2013·0 cites·3 claims
- 4239US2003088168A1Metered pump for a non-contact tonometerLEICA MICROSYSTEMS INC·Filed 2001·Application pending·0 cites
- 4338US5446274AInstructive display for assisting in centering an optical path element on a pathLEICA INC·Filed 1994·Granted Aug 29, 1995·7 cites·14 claims
- 4437US9320430B2Ophthalmic diagnostic instrument and methodLUCE DAVID A·Filed 2010·Granted Apr 26, 2016·0 cites·18 claims
- 4537US6159148ANon-contact tonometer having non-linear pressure rampLEICA MICROSYSTEMS INC·Filed 1998·Granted Dec 12, 2000·19 cites·6 claims
- 4636US5779633ATonometer air pulse generatorLEICA INC·Filed 1996·Granted Jul 14, 1998·18 cites·19 claims
- 4735US3969968AMusical instrument with means for scanning keysCLARK JR MELVILLE·Filed 1974·Granted Jul 20, 1976·3 cites·4 claims
- 4835US2003092979A1Non-contact tonometer having fluid pump driven by proportional solenoidLEICA MICROSYSTEMS INC·Filed 2001·Application pending·0 cites
- 4934USD975949SScrubbing handleFAR EAST BROKERS AND CONSULTANTS INC·Filed 2020·Granted Jan 17, 2023·0 cites·1 claims
- 5034US5825457AKeratometric illumination systemLEICA INC·Filed 1997·Granted Oct 20, 1998·15 cites·25 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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