Inventor
WILLIAMS JENNIFER TOPMILLER
US17 patents
Patents
17 patentsUS10419641B1Sep 17, 2019
Chip and supply item for imaging device, including communication
LEXMARK INT INC6 citations71
US12236436B2Feb 25, 2025
Methods and systems for determining the authenticity of a component
LEXMARK INT INC0 citations61
US12073206B2Aug 27, 2024
Methods for updating an electronic device
LEXMARK INT INC0 citations61
US11989737B2May 21, 2024
Methods and systems for determining the authenticity of a component
LEXMARK INT INC0 citations61
US11531477B2Dec 20, 2022
Methods for restricting read access to supply chips
LEXMARK INT INC0 citations61
US10990300B2Apr 27, 2021
Methods for restricting read access to supply chips
LEXMARK INT INC1 citations61
US12081713B2Sep 3, 2024
Methods and systems for maintaining a time measurement on an electronic device
LEXMARK INT INC0 citations60
US12069216B2Aug 20, 2024
Methods and systems for maintaining a time measurement on an electronic device
LEXMARK INT INC0 citations60
US11665298B2May 30, 2023
Methods and systems for maintaining a time measurement on an electronic device
LEXMARK INT INC0 citations60
US11455134B2Sep 27, 2022
Communication between an image forming device and a replaceable supply item
LEXMARK INT INC0 citations60
US12206785B2Jan 21, 2025
Security device computation matching
LEXMARK INT INC0 citations51
US10542172B2Jan 21, 2020
Chip and supply item for imaging device, including communication
LEXMARK INT INC0 citations51
US12386942B2Aug 12, 2025
Authentication using analog signal challenge
LEXMARK INT INC0 citations50
US10649702B2May 12, 2020
Communication between an image forming device and a replaceable supply item
LEXMARK INT INC0 citations48
US12450398B2Oct 21, 2025
Methods and systems for determining the authenticity of a component
LEXMARK INT INC0 citations45
US10659649B2May 19, 2020
Communication between an image forming device and a replaceable supply item
LEXMARK INT INC0 citations38
US10530959B2Jan 7, 2020
Communication between an image forming device and a replaceable supply item
LEXMARK INT INC0 citations38