HA

Herbert Ampferer

Dr. Ing. H.C. F. Porsche Ag: 30 patents #21 of 2,421Top 1%
Overall (All Time): #126,250 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
4693216 Crankshaft bearings for internal-combustion engines Klaus Groger 1987-09-15
4657043 Oil pressure regulating valve Robert Binder 1987-04-14
4559783 Turbocharged internal combustion engine with adjustable length pipe sections 1985-12-24
4510898 Reciprocating piston internal combustion engine, preferably of four-cylinder construction 1985-04-16
4493295 Internal combustion engine, especially for motor vehicles 1985-01-15