Inventor

KOWALCZYK MATTHEW E

US4 patents

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

MICROSOFT TECHNOLOGY LICENSING LLC

2 patents

USRE47518EJul 16, 2019

Image or pictographic based computer login systems and methods

MICROSOFT TECHNOLOGY LICENSING LLC1 citations70

USRE46301EFeb 7, 2017

Image or pictographic based computer login systems and methods

MICROSOFT TECHNOLOGY LICENSING LLC1 citations60

MICROSOFT CORP

1 patent

US7953983B2May 31, 2011

Image or pictographic based computer login systems and methods

MICROSOFT CORP28 citations90

HOLT ERIK L

1 patent

USRE44725EJan 21, 2014

Image or pictographic based computer login systems and methods

HOLT ERIK L5 citations77