P

Inventor

GRAF PAUL W

US7 patents
⚠️ This page may combine multiple inventors who share the name “GRAF PAUL W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

3 patents
US5237262AAug 17, 1993

Temperature compensated circuit for controlling load current

IBM40 citations90
US4902957AFeb 20, 1990

DC/DC converter

IBM24 citations89
US5514972AMay 7, 1996

Voltage comparison circuit

IBM14 citations71

LEXMARK INT INC

3 patents
US7738137B2Jun 15, 2010

Inkjet print head synchronous serial output for data integrity

LEXMARK INT INC15 citations82
US7635174B2Dec 22, 2009

Heater chip test circuit and methods for using the same

LEXMARK INT INC12 citations82
US7097280B2Aug 29, 2006

Printheads having improved heater chip construction

LEXMARK INT INC3 citations57

LEXMARK INTERNAT

1 patent
US7142456B2Nov 28, 2006

Distributed programmed memory cells used as memory reference currents

LEXMARK INTERNAT2 citations57