Richard J. Sitko

FS Federal Signal: 1 patents #293 of 717Top 45%

📍 Norridge, IL: #43 of 79 inventorsTop 55%

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

Overall (All Time): #4,052,642 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4386973	Vacuum carburizing steel	Richard J. Kawka, Daniel H. Herring, Philip Roth	1983-06-07