PH

Petrus Johannes Hoffmann

📍 Durbanville, ZA: #12 of 58 inventorsTop 25%
Overall (All Time): #2,142,953 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7429553 Process for reducing the toxicity of hydrocarbons Carl Dunlop, Stewart Hlohloza, Cyril David Knottenbelt, Leon Walliser 2008-09-30
7326817 Process for reducing the toxicity of hydrocarbons Carl Dunlop, Stewart Hlohloza, Cyril David Knottenbelt, Leon Walliser 2008-02-05