Assignee
KEYSTONE TECH LLC
US8 patents
Top patents by PatentIndex Score
US10883669B2Jan 5, 2021
LED light tubes, light boxes including LED light tubes and methods for installation of LED light tubes in light boxes
KEYSTONE TECH LLC5 citations79
US11466819B2Oct 11, 2022
LED light tubes, light boxes including LED light tubes and methods for installation of LED light tubes in light boxes
KEYSTONE TECH LLC2 citations68
USD1055737SDec 31, 2024
Light fixture sensor
KEYSTONE TECH LLC2 citations61
USD1076189SMay 20, 2025
Semi-spherical lamp
KEYSTONE TECH LLC1 citations60
USD1095932SSep 30, 2025
Semi-cylindrical lamp
KEYSTONE TECH LLC0 citations59
US11867364B2Jan 9, 2024
LED light tubes, light boxes including LED light tubes and methods for installation of LED light tubes in light boxes
KEYSTONE TECH LLC0 citations58
US11204136B2Dec 21, 2021
LED light tubes, light boxes including LED light tubes and methods for installation of LED light tubes in light boxes
KEYSTONE TECH LLC0 citations58
US12340714B2Jun 24, 2025
Portable LED sign cabinet
KEYSTONE TECH LLC0 citations57