P

Inventor

TULLIS BARCLAY J

US56 patents
⚠️ This page may combine multiple inventors who share the name “TULLIS BARCLAY J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HEWLETT PACKARD CO

21 patents
US6535243B1Mar 18, 2003

Wireless hand-held digital camera

HEWLETT PACKARD CO331 citations99
US5825044AOct 20, 1998

Freehand image scanning device which compensates for non-linear color movement

HEWLETT PACKARD CO165 citations99
US5686720ANov 11, 1997

Method and device for achieving high contrast surface illumination

HEWLETT PACKARD CO159 citations99
US6291829B1Sep 18, 2001

Identification of recording medium in a printer

HEWLETT PACKARD CO114 citations98
US6246050B1Jun 12, 2001

Optical encoders using non-patterned targets

HEWLETT PACKARD CO152 citations98
US4532970AAug 6, 1985

Particle-free dockable interface for integrated circuit processing

HEWLETT PACKARD CO164 citations98
US6362573B1Mar 26, 2002

Apparatus and method for monitoring the life of arc lamp bulbs

HEWLETT PACKARD CO64 citations96
US6249591B1Jun 19, 2001

Method and apparatus for control of robotic grip or for activating contrast-based navigation

HEWLETT PACKARD CO57 citations96
US6222174B1Apr 24, 2001

Method of correlating immediately acquired and previously stored feature information for motion sensing

HEWLETT PACKARD CO120 citations96
US6102552AAug 15, 2000

Laser-array based digital illuminator

HEWLETT PACKARD CO77 citations96
US5987269ANov 16, 1999

Toner quantity measuring technique in an electrophotographic printer

HEWLETT PACKARD CO55 citations96
US5140537AAug 18, 1992

Modeling a factory with human operators and validating the model

HEWLETT PACKARD CO67 citations96
US4534389AAug 13, 1985

Interlocking door latch for dockable interface for integrated circuit processing

HEWLETT PACKARD CO136 citations96
US4616683AOct 14, 1986

Particle-free dockable interface for integrated circuit processing

HEWLETT PACKARD CO59 citations95
US4705444ANov 10, 1987

Apparatus for automated cassette handling

HEWLETT PACKARD CO56 citations94
US6517180B2Feb 11, 2003

Dot sensing, color sensing and media sensing by a printer for quality control

HEWLETT PACKARD CO30 citations93
US6472887B1Oct 29, 2002

Capacitive sensor for sensing the amount of material in a container

HEWLETT PACKARD CO48 citations92
US5144524ASep 1, 1992

Light trap for blocking reflection and scattering of light

HEWLETT PACKARD CO31 citations92
US5004340AApr 2, 1991

Calibration target for surface analysis scanner systems

HEWLETT PACKARD CO42 citations92
US4875825AOct 24, 1989

Method for automated cassette handling

HEWLETT PACKARD CO39 citations91
US4923353AMay 8, 1990

Apparatus for automated cassette handling

HEWLETT PACKARD CO11 citations72

(unassigned)

5 patents

AGILENT TECHNOLOGIES INC

5 patents

MERRILL CHARLES

4 patents

KONTEK IND INC

4 patents

HEWLETT PACKARD DEVELOPMENT CO

4 patents

TULLIS BARCLAY J

3 patents

FMC CORP

3 patents

MCLAUGHLIN JAMES O

1 patent

Showing the top 50 of 56 patents by PatentIndex Score.