Friedrich Schmidt
22Patents
10h-index
34Co-inventors
75Inventor score
Filing activity: Jun 10, 1976 → Jan 26, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4391887A | Preparations of micro-organisms | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4544381A | Process for removal of emission gas pollutants by biological means | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5063187A | Catalyst based on crystalline aluminosilicate | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4135440A | Method and apparatus for ventilating or air conditioning occupied rooms | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4424451A | Water turbine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5582199A | Device for securing an outlet hose and an inlet hose or inlet valve in a domestic appliance such as a washing machine, dishwasher and the like | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7244409B2 | Process for producing synthetic zeolites with MFI structure | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4253261A | Revolver | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4663047A | Process for purifying waste water | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4246104A | Pressure-hydrolytic treatment of effluent | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4253384A | Ventilating and air conditioning arrangement | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7229941B2 | Catalysts based on crystalline aluminosilicate | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6951638B1 | Process for producing synthetic zeolites with an MFI structure | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4416834A | Process for the preparation of thiophosphoric acid esters | Chemistry; Metallurgy | 1 | Expired |
| US7989386B2 | Multi-layer catalyst made from niobium for the catalytic conversion of hydrocarbons | Chemistry; Metallurgy | 1 | Active |
| US4918934A | Method for cooling rooms | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US4296047A | Continuous preparation of phosphoric acid alkyl ester dichlorides | Chemistry; Metallurgy | 1 | Expired |
| US9174204B2 | Catalyst based on zeolite for producing olefins and for oligomerizing olefins | Emerging Cross-Sectional Technologies | 1 | Active |
| US4468908A | Process and apparatus for producing a floor-, wall- or ceiling surface formed of individual assembly plates and provided with a covering | Fixed Constructions | 1 | Expired |
| US5325197A | Television signal processing unit which provides monitoring during periods of the television signal to detect erroneous circuit operation | Electricity | 1 | Expired |
| US8128809B2 | Ring opening process | Chemistry; Metallurgy | 1 | Active |
| US8119552B2 | Catalyst composition for hydrocracking and process of mild hydrocracking and ring opening | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.