Inventor · disambiguated record
David K. Donald
Also filed as: DONALD DAVID · DONALD DAVID K
24 granted patents·2,320 citations·filing 1980–2004
98Inventor score
Files withHEWLETT PACKARD CO15AGILENT TECHNOLOGIES INC6AGILENT TECHNOLGIES INC1NORTEL NETWORKS LTD1OPTHOS1
Top patents by PatentIndex Score
24 records- 0198US6062681ABubble valve and bubble valve-based pressure regulatorHEWLETT PACKARD CO·Filed 1998·Granted May 16, 2000·210 cites·28 claims
- 0298US4490728AThermal ink jet printerHEWLETT PACKARD CO·Filed 1982·Granted Dec 25, 1984·476 cites·4 claims
- 0397US6212308B1Thermal optical switches for lightAGILENT TECHNOLOGIES INC·Filed 1999·Granted Apr 3, 2001·211 cites·17 claims
- 0497US5699462ATotal internal reflection optical switches employing thermal activationHEWLETT PACKARD CO·Filed 1996·Granted Dec 16, 1997·216 cites·27 claims
- 0596US5828799AThermal optical switches for lightHEWLETT PACKARD CO·Filed 1997·Granted Oct 27, 1998·157 cites·20 claims
- 0696US4336544AMethod and apparatus for drop-on-demand ink jet printingHEWLETT PACKARD CO·Filed 1980·Granted Jun 22, 1982·97 cites·6 claims
- 0795US6320994B1Total internal reflection optical switchAGILENT TECHNOLGIES INC·Filed 1999·Granted Nov 20, 2001·168 cites·8 claims
- 0895US5436925AColliding pulse mode-locked fiber ring laser using a semiconductor saturable absorberHEWLETT PACKARD CO·Filed 1994·Granted Jul 25, 1995·107 cites·21 claims
- 0991US6888069B1Equipment tray for simplified insertion and removal of rack-mounted equipmentNORTEL NETWORKS LTD·Filed 2004·Granted May 3, 2005·72 cites·18 claims
- 1091US6360775B1Capillary fluid switch with asymmetric bubble chamberAGILENT TECHNOLOGIES INC·Filed 1998·Granted Mar 26, 2002·104 cites·40 claims
- 1190US5960131ASwitching element having an expanding waveguide coreHEWLETT PACKARD CO·Filed 1998·Granted Sep 28, 1999·100 cites·19 claims
- 1289US5448579APolarization independent picosecond fiber laserHEWLETT PACKARD CO·Filed 1993·Granted Sep 5, 1995·70 cites·13 claims
- 1384US5732168AThermal optical switches for lightHEWLETT PACKARD CO·Filed 1995·Granted Mar 24, 1998·61 cites·5 claims
- 1483US6299673B1Gas extraction device for extracting gas from a microfluidics systemHEWLETT PACKARD CO·Filed 1998·Granted Oct 9, 2001·39 cites·20 claims
- 1583US6198856B1Optical switch having test portsAGILENT TECHNOLOGIES INC·Filed 1999·Granted Mar 6, 2001·63 cites·14 claims
- 1676US6212956B1High output capacitative gas/liquid detectorAGILENT TECHNOLOGIES INC·Filed 1998·Granted Apr 10, 2001·57 cites·23 claims
- 1771US6415074B1Devices and methods for optical communication systemsOPTHOS·Filed 2000·Granted Jul 2, 2002·14 cites·18 claims
- 1868US6398850B1Gas extraction device for extracting gas from a microfluidics systemHEWLETT PACKARD CO·Filed 2001·Granted Jun 4, 2002·10 cites·9 claims
- 1968US5978527AThermal optical switches for lightHEWLETT PACKARD CO·Filed 1998·Granted Nov 2, 1999·30 cites·13 claims
- 2066US5365531AApparatus and method for initializing an optical-fiber laser for mode lockingHEWLETT PACKARD CO·Filed 1992·Granted Nov 15, 1994·23 cites·18 claims
- 2151US6208778B1Non-perpendicular optical paths for a crosstalk-inhibiting switching arrangementAGILENT TECHNOLOGIES INC·Filed 1998·Granted Mar 27, 2001·15 cites·18 claims
- 2248US5852689AMethod for making fluid optical switchesHEWLETT PACKARD CO·Filed 1997·Granted Dec 22, 1998·13 cites·12 claims
- 2333US6407835B1Single site for healing dual optical ringsAGILENT TECHNOLOGIES INC·Filed 1999·Granted Jun 18, 2002·3 cites·18 claims
- 2432US4805237AParametric diode amplifierHEWLETT PACKARD CO·Filed 1988·Granted Feb 14, 1989·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →