DF

Denis R. Friedman

📍 Acton, MA: #597 of 1,334 inventorsTop 45%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,671,257 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4849102 Bidirectional ultrafiltration apparatus Guy Latour, Richard Himmelsbach 1989-07-18
4715955 Ultrafiltration apparatus 1987-12-29
4599170 Filtration apparatus Richard Goulston 1986-07-08