WT

Walter Topfer

Dr. Ing. H.C. F. Porsche Ag: 3 patents #489 of 2,421Top 25%
IA Ing. H.C. F. Porsche Aktiengesellschaft: 1 patents #4 of 68Top 6%
📍 Iptingen, DE: #1 of 1 inventorsTop 100%
Overall (All Time): #1,287,749 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5623900 Internal-combustion engine comprising an intake system Franz Eberle, Dietmar Kruger, Norbert Kleinehakenkamp, Michail I. Fesina, Rudolf N. Starobinskij +2 more 1997-04-29
5603295 Internal-combustion engine comprising an intake system Franz Eberle, Dietmar Kruger, Norbert Kleinehakenkamp, Michail I. Fesina, Rudolf N. Starobinskij +2 more 1997-02-18
5537965 Intake system for an internal-combustion engine Franz Eberle, Dietmar Kruger, Norbert Kleinehakenkamp, Michail I. Fesina, Rudolf N. Starobinskij +2 more 1996-07-23
4922882 Crankcase ventilation system 1990-05-08