M. Frank G. Johnson

GI Gas Research Institute: 1 patents #343 of 808Top 45%

📍 Elmhurst, IL: #348 of 619 inventorsTop 60%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #3,560,935 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6467402	Fossil fuel-fired boilerless steamer	Mark J. Khinkis, James T. Cole, Donald E. Fritzsche	2002-10-22