Inventor

MAXFIELD DAVID

US25 patents

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

MAXFIELD DAVID

HEWLETT PACKARD DEVELOPMENT CO

Detecting a drive bubble formation and collapse

Printheads with sensor plate impedance measurement

Detecting a drive bubble formation and collapse

Printheads with sensor plate impedance measurement

Switches for bypass capacitors

Fluid ejection apparatus with single power supply connector

Detecting a drive bubble formation and collapse

Printhead assembly

Fluid ejection apparatus with single-side thermal sensor

Modifying firing parameters for printheads

Liquid propelling component

Printer fluid impedance sensing in a printhead

HEWLETT PACKARD DEVELOPMENT CO LP

Fluid ejection apparatus with single-side thermal sensor

Determining an issue in an inkjet nozzle with impedance measurements

Fluid ejection apparatus with single-side thermal sensor

Fluid ejection apparatus with single power supply connector

Determining an issue in an inkjet nozzle with impedance measurements

MARTIN ERIC T

Calibrating a program that detects a condition of an inkjet nozzle

Detecting a drive bubble formation and collapse

GOVYADINOV ALEXANDER

Determining an issue with an inkjet nozzle using an impedance difference

MAXFIELD DAVID

Printhead assembly

ACCU TALLY LLC

Apparatus for measuring a tubular string as it is lowered into a borehole and method

DUDENHOEFER CHRISTIE

Method of dispensing liquid

VAN BROCKLIN ANDREW L

Determining an issue in an inkjet nozzle with impedance measurements

GHOZEIL ADAM L

Firing cell