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 1–25 of 30 patents

Patent #TitleCo-InventorsDate
5711614 Crankshaft bearing of a multicylinder internal combustion engine Johannes Wuest, Dieter Nowak, Michael Muddemann 1998-01-27
5678884 Air guide device with air intake openings Stephen Murkett, Michael Preiss, Norbert Singer 1997-10-21
5273007 Arrangement for distributing oil in a camshaft 1993-12-28
5220889 Intake system for a multi-cylinder internal-combustion engine Frank Ickinger 1993-06-22
5161643 Delay part for lubricating oil 1992-11-10
5148719 Torsional-vibration damper Rudolf Grandhuber 1992-09-22
5138985 Arrangement for changing the valve timing of an internal-combustion engine Imre Szodfridt, Willi Schultz 1992-08-18
5136993 Internal-combustion engine oil guiding housing Manfred Batzill 1992-08-11
5094072 Exhaust system of a reciprocating piston engine Klaus Schneider 1992-03-10
5080057 Cylinder head of an internal-combustion engine Manfred Batzill 1992-01-14
5063895 Oil pump drive arrangement for a piston internal-combustion engine and method of making same 1991-11-12
5014655 Camshaft drive of a multi-cylinder V-engine 1991-05-14
4974569 Cylinder block and crankcase Rudolf Grandhuber, Thomas Brachert 1990-12-04
4938314 Plastic oil pan Klaus Sitzler 1990-07-03
4903644 Air intake section of an internal combustion engine Klaus Groger 1990-02-27
4898125 Cylinder head cover with suction pipe arrangement for an internal combustion engine 1990-02-06
4883031 Internal combustion engine Klaus-Erwin Groeger 1989-11-28
4829942 Intake system for a multi-cylinder internal-combustion engine 1989-05-16
4828536 Chain tensioner 1989-05-09
4823748 Actuating arrangement Klaus-Erwin Groeger 1989-04-25
4805566 Arrangement for influencing the control times of valves 1989-02-21
4785772 Crankshaft of a ferro-metallic material for reciprocating piston internal combustion engines Peter Krotky 1988-11-22
4759317 Multi-cylinder internal combustion engine 1988-07-26
4716638 Method for aligning bearing covers at bearing sections of a crankcase 1988-01-05
4709670 Fastening arrangement of a cover hood at a cylinder head 1987-12-01