Inventor · Herrenberg, DE

Andreas Knecht

38Patents
9h-index
44Co-inventors
75Inventor score

Filing activity: Sep 27, 1996 → Apr 20, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5911400A Solenoid valve and method for its manufacture Mechanical Engineering; Lighting; Heating 43 Expired
US7841311B2 Variable valve timing device Mechanical Engineering; Lighting; Heating 25 Active
US7946266B2 Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element Mechanical Engineering; Lighting; Heating 16 Active
US7640902B2 Rotor for vane-type motor with reduced leakage Mechanical Engineering; Lighting; Heating 14 Active
US6129063A Device for changing the rotational position of a shaft relative to a drive wheel and method of making same Emerging Cross-Sectional Technologies 12 Expired
US7513230B2 Camshaft adjusting device Mechanical Engineering; Lighting; Heating 11 Expired
US6223763A Hydraulic system for actuating at least two operational areas in a vehicle Emerging Cross-Sectional Technologies 10 Expired
US6871621B2 Camshaft adjuster for internal combustion engines of motor vehicles Mechanical Engineering; Lighting; Heating 10 Expired
US8201528B2 Doubled cam shaft adjuster in layered construction Mechanical Engineering; Lighting; Heating 10 Active
US7497193B2 Rotor of a camshaft adjuster Mechanical Engineering; Lighting; Heating 9 Active
US6390043B1 Device for hydraulically adjusting the angle of rotation of a shaft in relation to a driving wheel Emerging Cross-Sectional Technologies 8 Expired
US7836857B2 Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element Emerging Cross-Sectional Technologies 7 Active
US6675752B1 Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft Mechanical Engineering; Lighting; Heating 7 Expired
US7484486B2 Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters Mechanical Engineering; Lighting; Heating 6 Expired
US7047931B2 Control device for at least one consumer, such as a camshaft adjuster, automatic transmission and the like, of motor vehicles Mechanical Engineering; Lighting; Heating 6 Expired
US6209497A Device for changing the relative rotational position of a shaft to the drive wheel Emerging Cross-Sectional Technologies 6 Expired
US7246580B2 Camshaft adjuster for vehicles, especially motor vehicles Mechanical Engineering; Lighting; Heating 6 Expired
US6742484B2 Device for relative rotational angle adjustment of a cam shaft of an internal combustion engine to a drive wheel Emerging Cross-Sectional Technologies 6 Expired
US8662040B2 Oscillating-motor camshaft adjuster having a hydraulic valve Mechanical Engineering; Lighting; Heating 5 Active
US8677960B2 Camshaft adjuster, in particular with camshaft Mechanical Engineering; Lighting; Heating 5 Active
US8791780B2 Hydraulic transmission valve Electricity 3 Active
US7278385B2 Camshaft adjuster with a locking position that, with regard to design, is freely selectable Mechanical Engineering; Lighting; Heating 3 Expired
US6679208B2 Device for adjusting the angle of rotation of a camshaft of an internal combustion engine relative to a drive wheel Mechanical Engineering; Lighting; Heating 3 Expired
US7895981B2 Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine Emerging Cross-Sectional Technologies 2 Active
US7117832B2 Device for adjusting a camshaft of an internal combustion engine of a motor vehicle Emerging Cross-Sectional Technologies 2 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.