HA

Helmut Alfs

CH Chemische Werke Huels: 3 patents #52 of 245Top 25%
CA Chemische Werke Huels, A.G.: 1 patents #13 of 73Top 20%
📍 Marl, DE: #117 of 424 inventorsTop 30%
Overall (All Time): #1,308,732 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4461916 Process for the production of p-tert-octyl phenol by catalytic alkylation of phenol Werner Boexkes, Erwin Vangermain 1984-07-24
4414125 Alkali metal or amine salts of a mixture of 2- and 3-alkyladipic acids as corrosion inhibitors Hans Keil, Klaus Schulze 1983-11-08
4236033 Process for the manufacture of p-alkylphenols George L. Boehm, Heinz Steiner 1980-11-25
4211506 Method and apparatus for the metered conveying of pulverulent solids Ferdinand List, Julius Klos 1980-07-08