Inventor

CHANG SONGAN ANDY

US4 patents

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

NOOK DIGITAL LLC

2 patents

US9836154B2Dec 5, 2017

Selective touch scan area and reporting techniques

NOOK DIGITAL LLC3 citations66

US10152175B2Dec 11, 2018

Selective touch scan area and reporting techniques

NOOK DIGITAL LLC0 citations45

BARNESANDNOBLE COM LLC

2 patents

US9250681B2Feb 2, 2016

Infrared reflection based cover detection

BARNESANDNOBLE COM LLC4 citations66

US9134849B2Sep 15, 2015

Pen interface for a touch screen device

BARNESANDNOBLE COM LLC3 citations56