LF

Ludo K. Frevel

UN Unknown: 3 patents #7,366 of 83,584Top 9%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,352,240 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4504452 Coproduction of perchloroethylene, phosgene, and silicon tetrachloride — 1985-03-12
4247771 Parafocusing diffractometer — 1981-01-27