Inventor

CASTLE STEVEN T

US23 patents

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

CASTLE STEVEN T

HEWLETT PACKARD DEVELOPMENT CO

Methods and systems for producing an object through solid freeform fabrication by varying a concentration of ejected material applied to an object layer

Consumable cartridge with theft deterrence features

Nozzle shield assembly

Method of improving color quality in an object produced by solid freeform fabrication

Methods and systems for controlling printhead temperature in solid freeform fabrication

Print liquid supply interconnect in hose-fed housing

Fluid reservoir impedance sensors

Printer cartridge with multiple backpressure chambers

Reprocessing of a replaceable supply component

Container assembly

Container assembly

Device and method for measuring ink levels in a container

Appending data on a replaceable supply component

Logic circuitry

HEWLETT PACKARD CO

Method and apparatus for determining an optimum print density for an ink jet printer

Ink level gauging in inkjet printing

Printer with multiple printmodes per swath

Swath density control to improve print quality and extend printhead life in inkjet printers

Printing system that utilizes continuous and non-continuous firing frequencies

BRUCE IND INC

Fluid control valve unit

NIELSEN JEFFREY ALLEN

Method for aligning multiple nozzle members in a solid free form fabrication tool

INT GAME TECH

Rotary coin counter

CASTLE STEVEN T

Inkjet pen adapter