Charles A. Sieck

📍 Harrisburg, PA: #305 of 635 inventorsTop 50%

🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%

Overall (All Time): #2,339,200 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4779420	Thermal exchanger engine	—	1988-10-25
4488402	Internal thermal exchanger engine	—	1984-12-18