This inventor holds 1 USPTO granted patent. Top assignee: Wacker Neuson America Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Donald Duffek: Inventor of an Adaptive Hydronic Surface Heater.
Introduction
Donald Duffek is an inventor based in Hartford, Wisconsin. His patent work includes a hydronic surface heater designed to adjust its burner’s air and fuel supply as ambient conditions change. Duffek is associated with Wacker Neuson America Corporation.
Latest Patents
Duffek is credited with 1 patent: “Hydronic Surface Heater with Auto-Adjusting Burner.” The invention is designed to maintain a desired air-to-fuel ratio despite changes in ambient air temperature or pressure. It can adjust the air or fuel supply periodically or continuously, using either open-loop control or sensor feedback in a closed-loop system. In the closed-loop approach, sensor signals can help regulate parameters such as air mass flow, oxygen concentration, exhaust composition, or exhaust temperature.
Career Highlights
Duffek’s listed patent highlights an approach to improving burner control under varying environmental conditions. By adjusting the flow of air or fuel, the system aims to maintain a selected operating target.
Collaborations
Duffek is associated with Wacker Neuson America Corporation. His listed coworkers include John Lane and Andrew Hensch.
Conclusion
Donald Duffek’s patent focuses on adaptive burner control, using adjustments to air and fuel supply to help a hydronic surface heater maintain its desired operating conditions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile