Patents & Licenses

EMP's robust and rapidly expanding portfolio of United States and international patents covers many of the fundamental concepts of engine cooling, fluid pumps, and valves. Please find a list of our patent porfolio below as well as a link to view additional details of our patents on the official USPTO website.

Patent Number Description
5,390,762 Automatic Crankcase Oil Change and Makeup System
5,415,134 Engine Cooling System for Cooling a Vehicle Engine
5,743,231 Automatic method and apparatus for preventing wear in an Internal Combustion Engine
6,053,706 Oil Pump with Integrated Oil Metering Device
6,056,518 Fluid Pump
6,135,098 Flow-Through Controllable Air Charger
6,349,692 Method and Apparatus for Reducing Wear in an Internal Combustion Engine
6,443,006 Device Which Measures Oil Level and Dielectric Strength with a Capacitance Based Sensor Using a Ratio Metric Algorithm
6,659,737 Electronic Fluid Pump with an Encapsulated Stator Assembly
6,702,555 Fluid Pump Having an Isolated Stator Assembly
6,736,965 Auxiliary Filtration System and Filtering Method
6,951,606 Auxiliary Filtration System for an Engine
7,096,830 Mounting Arrangement for Electric Water Pump
7,267,086 Thermal Management System for a Heat Producing System
7,343,882 Fluid Valve
7,406,835 Cooling System and Method for Cooling a Heat Producing System
7,412,948 Fluid Valve
7,454,896 Thermal Management System for a Vehicle
7,484,378 Cooling System and Method for Cooling a Heat Producing System