Inventor · Oberriexingen, DE

Alfred Schulz

29Patents
15h-index
47Co-inventors
81Inventor score

Filing activity: Jan 21, 1976 → Jul 28, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US5772386A Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 111 Expired
US4794538A Method to control the operation of wheels of a vehicle to prevent slipping or skidding, and brake locking Performing Operations; Transporting 42 Expired
US5655869A Device for coupling loading and unloading devices with semiconductor processing machines Emerging Cross-Sectional Technologies 42 Expired
US6071059A Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 37 Expired
US4063539A System to control timing of cyclically repetitive events, particularly automotive ignition Emerging Cross-Sectional Technologies 28 Expired
US6736582B1 Device for manipulating an object for loading and unloading a clean room Emerging Cross-Sectional Technologies 27 Expired
US4200007A Apparatus for synchronizing the driving and driven members during gear shift operations Mechanical Engineering; Lighting; Heating 26 Expired
US4228700A Automatic transmission with electronically controlled torque transmission during gear shift Mechanical Engineering; Lighting; Heating 25 Expired
US6375403B1 Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 24 Expired
US4287565A Monitoring system for program controlled apparatus Physics 24 Expired
US4414949A Apparatus for the control of repetitive events dependent on operating parameters of internal combustion engines Emerging Cross-Sectional Technologies 23 Expired
US6609876B2 Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 19 Expired
US6641348B1 Docking station for substrate transport containers Emerging Cross-Sectional Technologies 18 Expired
US6837663B2 Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 17 Expired
US4582031A Electronic control system for an internal combustion engine Mechanical Engineering; Lighting; Heating 17 Expired
US4398520A Ignition and fuel injection system for multicylinder engines Emerging Cross-Sectional Technologies 11 Expired
US4255965A Apparatus for detecting oscillations occurring during engine knock Physics 10 Expired
US4212794A Aqueous drilling fluid Chemistry; Metallurgy 9 Expired
US4176309A Stabilized voltage regulator circuit, particularly for use with a serially connected PNP transistor Physics 8 Expired
US6461094B1 Loading and unloading station for semiconductor processing installations Emerging Cross-Sectional Technologies 7 Expired
US4267750A Method and apparatus for adjusting the operating force applied to gears during gear shifts Mechanical Engineering; Lighting; Heating 7 Expired
US4444048A Apparatus for detecting malfunction in cyclically repetitive processes in an internal combustion engine Emerging Cross-Sectional Technologies 7 Expired
US4718389A Apparatus for the control of repetitive events dependent on operating parameters of internal combustion engines Emerging Cross-Sectional Technologies 5 Expired
US4305013A Engine knock sensor using piezoelectric rod oscillator Physics 5 Expired
US7026418B2 Emulsion polymerization process utilizing ethylenically unsaturated amine salts of sulfonic, phosphoric and carboxylic acids Emerging Cross-Sectional Technologies 3 Expired

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