FW

Frank J. Weigert

EA E.I. Du Pont De Nemours And: 4 patents #6 of 563Top 2%
📍 Wilmington, DE: #7 of 264 inventorsTop 3%
🗺 Delaware: #13 of 479 inventorsTop 3%
Overall (1989): #5,290 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4820883 Defluorination process using activated carbon 1989-04-11
4820884 Defluorination process using activated carbon 1989-04-11
4814522 Catalytic fluoroolefin transhalogenations 1989-03-21
4804784 Process for preparing methyl- and ethyl-substituted primary anilines 1989-02-14