John D. Kroska

📍 East Bethel, MN: #19 of 46 inventorsTop 45%

🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%

Overall (All Time): #2,151,998 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7459675	Mass spectrometer ionization source	—	2008-12-02
6878932	Mass spectrometer ionization source and related methods	—	2005-04-12