Inventor
DONALD DAVID K
US38 patents
⚠️ This page may combine multiple inventors who share the name “DONALD DAVID K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
15 patentsUS5828799AOct 27, 1998
Thermal optical switches for light
HEWLETT PACKARD CO157 citations99
US5699462ADec 16, 1997
Total internal reflection optical switches employing thermal activation
HEWLETT PACKARD CO216 citations99
US5960131ASep 28, 1999
Switching element having an expanding waveguide core
HEWLETT PACKARD CO100 citations98
US5436925AJul 25, 1995
Colliding pulse mode-locked fiber ring laser using a semiconductor saturable absorber
HEWLETT PACKARD CO107 citations98
US4490728ADec 25, 1984
Thermal ink jet printer
HEWLETT PACKARD CO476 citations98
US6062681AMay 16, 2000
Bubble valve and bubble valve-based pressure regulator
HEWLETT PACKARD CO210 citations97
US5732168AMar 24, 1998
Thermal optical switches for light
HEWLETT PACKARD CO61 citations96
US4336544AJun 22, 1982
Method and apparatus for drop-on-demand ink jet printing
HEWLETT PACKARD CO97 citations96
US5448579ASep 5, 1995
Polarization independent picosecond fiber laser
HEWLETT PACKARD CO70 citations95
US5978527ANov 2, 1999
Thermal optical switches for light
HEWLETT PACKARD CO30 citations93
US5365531ANov 15, 1994
Apparatus and method for initializing an optical-fiber laser for mode locking
HEWLETT PACKARD CO23 citations93
US6299673B1Oct 9, 2001
Gas extraction device for extracting gas from a microfluidics system
HEWLETT PACKARD CO39 citations92
US5852689ADec 22, 1998
Method for making fluid optical switches
HEWLETT PACKARD CO13 citations74
US6398850B1Jun 4, 2002
Gas extraction device for extracting gas from a microfluidics system
HEWLETT PACKARD CO10 citations72
US4805237AFeb 14, 1989
Parametric diode amplifier
HEWLETT PACKARD CO4 citations61
AGILENT TECHNOLOGIES INC
6 patentsUS6212308B1Apr 3, 2001
Thermal optical switches for light
AGILENT TECHNOLOGIES INC211 citations99
US6360775B1Mar 26, 2002
Capillary fluid switch with asymmetric bubble chamber
AGILENT TECHNOLOGIES INC104 citations98
US6212956B1Apr 10, 2001
High output capacitative gas/liquid detector
AGILENT TECHNOLOGIES INC57 citations96
US6198856B1Mar 6, 2001
Optical switch having test ports
AGILENT TECHNOLOGIES INC63 citations96
US6208778B1Mar 27, 2001
Non-perpendicular optical paths for a crosstalk-inhibiting switching arrangement
AGILENT TECHNOLOGIES INC15 citations84
US6407835B1Jun 18, 2002
Single site for healing dual optical rings
AGILENT TECHNOLOGIES INC3 citations63
SEARLE & CO
4 patentsUS4743587AMay 10, 1988
Hydroxamic acid based collagenase inhibitors
SEARLE & CO62 citations95
US4599361AJul 8, 1986
Hydroxamic acid based collagenase inhibitors
SEARLE & CO96 citations95
US4595700AJun 17, 1986
Thiol based collagenase inhibitors
SEARLE & CO83 citations95
US4681966AJul 21, 1987
Intermediate for thiol based collagenase inhibitors
SEARLE & CO10 citations73
FISONS PLC
4 patentsUS5179087AJan 12, 1993
Macrocyclic compounds
FISONS PLC6 citations73
US5376663ADec 27, 1994
Macrocyclic compounds
FISONS PLC10 citations72
US5384316AJan 24, 1995
4,16-diazatetracyclo[23.3.1.1.Hu 14,17=b . 0 Hu 4,9 triaconta-16,19-diene-2,3,10-trione derivatives
FISONS PLC1 citations52
US5210227AMay 11, 1993
Immunosuppressive compounds
FISONS PLC0 citations52
ASTRAZENECA UK LTD
4 patentsUS6211368B1Apr 3, 2001
Pyrrolo(3,4-d)pyrimidinone derivatives and their use as medicaments
ASTRAZENECA UK LTD1 citations61
US6166206ADec 26, 2000
Pyrrolo[3,4-D]Pyrimidinone derivatives and their use as medicaments
ASTRAZENECA UK LTD1 citations61
US6229013B1May 8, 2001
Pyrrolo[3,4-d]pyrimidinone derivatives and their use as medicaments
ASTRAZENECA UK LTD0 citations50
US6136974AOct 24, 2000
Pyrrolo[3,4-D]Pyrimidinone derivatives and their use as medicaments
ASTRAZENECA UK LTD0 citations50