1. Patent Liability Analysis
eV-TEK:
Andrew Phillips
Ben Laskowski
Rob Swanson
Shannon Abrell
Patent Liability Analysis

2. Electric Vehicle Monitoring System
United States Patent
File date: 05/19/1995
Used for measuring electric vehicle performance
Sensors used for obtaining data on the vehicle performance and operating parameters
Digital dashboard display to provide driver with vehicle operation
Data acquisition system
Processing unit in form of removable computer

3. Electric Vehicle Monitoring System
Infringement under Doctrine of Equivalents
Similarities in actual function of overall project
Some details of patent left vague
Differences in the way functions are executed
Motor Temperature
Patent – thermocouples
eV-TEK – thermistor
Speed
Patent – shaft encoder
eV-TEK – inductive proximity sensor
Displays
Patent – Bargraphs
eV-TEK – 7 segment displays and analog gauges

4. Battery Monitor for Electric Vehicles
United States Patent
File Date: 01/06/1995
Monitors voltage and temperature of battery packs associated with a battery pack of an electric vehicle
Literal Infringement in terms of eV-TEK battery monitoring system
Differences
Patent – measures battery temperature
Opto-isolators used differently