Inventor

DOUGLAS CHRISTOPHER

US6 patents

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

SECURUS TECHNOLOGIES INC

2 patents

US11829427B1Nov 28, 2023

Systems and methods for processing and certifying digital mail

SECURUS TECHNOLOGIES INC2 citations68

US11166160B1Nov 2, 2021

Alerting on contraband device detection

SECURUS TECHNOLOGIES INC3 citations66

SECURUS TECH LLC

2 patents

US12238100B1Feb 25, 2025

Termination switch for controlled-environment facility resident communication and/or media devices

SECURUS TECH LLC0 citations47

US11720556B1Aug 8, 2023

Management of resident to resident mail between controlled-environment facilities

SECURUS TECH LLC0 citations42

THINK SURGICAL INC

1 patent

US12171913B2Dec 24, 2024

Surgical article formed from fine grained tungsten carbide in nickel matrix

THINK SURGICAL INC1 citations60

PACCAR INC

1 patent

US10690240B2Jun 23, 2020

Real-time tracking and filtering of estimated driveline ratios

PACCAR INC0 citations36