Inventor

LIBBEY ALBERT H

US4 patents

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

3M INNOVATIVE PROPERTIES CO

2 patents

US7787259B2Aug 31, 2010

Magnetic shield for use in a location sensing system

3M INNOVATIVE PROPERTIES CO18 citations91

US7916501B2Mar 29, 2011

Magnetic shield for use in a location sensing system

3M INNOVATIVE PROPERTIES CO4 citations61

GEAGHAN BERNARD O

1 patent

US8089474B2Jan 3, 2012

Location sensing system and method employing adaptive drive signal adjustment

GEAGHAN BERNARD O15 citations82

HAGEN KATHY L

1 patent

US8134542B2Mar 13, 2012

Untethered stylus employing separate communication and power channels

HAGEN KATHY L17 citations77