RF

Robert Fraatz

Overall (All Time): #1,656,192 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5372936 Method for detecting biological activities in a specimen Ewald Joebstl, Hellfried Karpf 1994-12-13
5266486 Method and apparatus for detecting biological activities in a specimen Ewald Joebstl, Hellfried Karpf 1993-11-30
4953980 Particle identifying apparatus Burton DeVolk, Fritz S. Allen, Cathy D. Newman 1990-09-04