Inventor · disambiguated record
Richard Calderwood
Also filed as: CALDERWOOD RICHARD · CALDERWOOD RICHARD C
12 granted patents·20 pending applications·386 citations·filing 1997–2019
92Inventor score
Top patents by PatentIndex Score
32 records- 0185US6266773B1Computer security systemINTEL CORP·Filed 1998·Granted Jul 24, 2001·117 cites·28 claims
- 0283US7006654B2Push-pull electromagnetic transducer with increased XmaxSTEP TECHNOLOGIES INC·Filed 2003·Granted Feb 28, 2006·33 cites·34 claims
- 0383US6442607B1Controlling data transmissions from a computerINTEL CORP·Filed 1998·Granted Aug 27, 2002·111 cites·31 claims
- 0477US7181039B2Thermal chimney equipped audio speaker cabinetSTEP TECHNOLOGIES INC·Filed 2004·Granted Feb 20, 2007·18 cites·10 claims
- 0573US7456868B2Digital camera with ISO pickup sensitivity adjustmentCALDERWOOD RICHARD C·Filed 2002·Granted Nov 25, 2008·14 cites·40 claims
- 0671US5978737AMethod and apparatus for hazard detection and distraction avoidance for a vehicleINTEL CORP·Filed 1997·Granted Nov 2, 1999·63 cites·21 claims
- 0764US7063059B2Piston engine with selectable firing orderCALDERWOOD RICHARD C·Filed 2004·Granted Jun 20, 2006·9 cites·32 claims
- 0863US7227970B2Shorting ring fixture for electromagnetic transducerSTEP TECHNOLOGIES INC·Filed 2004·Granted Jun 5, 2007·9 cites·15 claims
- 0956US7492918B2Audio speaker with graduated voice coil windingsSTEP TECHNOLOGIES INC·Filed 2004·Granted Feb 17, 2009·5 cites·25 claims
- 1054US2006152847A1Optical disc drive with integral hard disk cache driveSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 1151US2007104347A1Angled thermal chimney in audio speaker cabinetSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 1250US7180429B2Slow motion detection systemINTEL CORP·Filed 2002·Granted Feb 20, 2007·1 cites·42 claims
- 1350US7177440B2Electromagnetic transducer with asymmetric diaphragmSTEP TECHNOLOGIES INC·Filed 2002·Granted Feb 13, 2007·3 cites·17 claims
- 1448US7233681B2Electromagnetic transducer with eccentrically mounted voice coil formerSTEP TECHNOLOGIES INC·Filed 2004·Granted Jun 19, 2007·3 cites·2 claims
- 1547US2008166010A1Overlapping surround roll for loudspeakerSTILES ENRIQUE M·Filed 2007·Application pending·0 cites
- 1645US2006078136A1Chamber-loaded augmented passive radiatorSTILES ENRIQUE M·Filed 2004·Application pending·0 cites
- 1745US2007183620A1Selectable impedance, constant efficiency electromagnetic transducerSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 1845US2006044663A1Hard disk drive with multiple spindlesSTILES ENRIQUE M·Filed 2004·Application pending·0 cites
- 1945US2006078144A1Compound-driven augmented passive radiatorSTILES ENRIQUE M·Filed 2004·Application pending·0 cites
- 2045US2007237353A1Magnetically tapered air gap for electromagnetic transducerSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2145US2006239496A1Magnetically tapered air gap for electromagnetic transducerSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2243US2005041831A1Electromagnetic transducer motor structure with radial thermal extraction pathsFiled 2003·Application pending·0 cites
- 2343US2006182298A1Bessel soundbarSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2442US2006159289A1Bessel array with full amplitude signal to half amplitude position transducersSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2542US2006159287A1MTM of bessels loudspeakerSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2642US2006159286A1Bessel array with non-empty null positionsSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2742US2006159288A1Bessel dipole loudspeakerSTILES ENRIQUE M·Filed 2006·Application pending·0 cites
- 2841US2006018490A1Bessel arraySTILES ENRIQUE M·Filed 2005·Application pending·0 cites
- 2940US2005089187A1Nanoporous diaphragm for electromagentic transducerFiled 2003·Application pending·0 cites
- 3040US2020263947A1Vibration Dampening Muzzle Device for a Small Arms WeaponCALDERWOOD RICHARD·Filed 2019·Application pending·0 cites
- 3139US2007101370A1Television program selectionSTEXAR CORP·Filed 2005·Application pending·0 cites
- 3239US2007118852A1Virtual television channels for audio-video systemSTEXAR CORP·Filed 2005·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Richard Calderwood files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →