Friedrich Geiser
26Patents
12h-index
11Co-inventors
78Inventor score
Filing activity: Mar 3, 1986 → Jul 27, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6416037B1 | Vacuum pipe | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US5379983A | Shut-off valves for pipelines | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4809950A | Valve slide with slide housing | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4921213A | Valve slide | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6431518B1 | Vacuum valve | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4634094A | Shutoff valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6494434B1 | Butterfly valve | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7647999B2 | Multitrack curve-tilting vehicle, and method for tilting a vehicle | Performing Operations; Transporting | 16 | Active |
| US4881717A | Vacuum chamber | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US7011294B1 | Vacuum valve | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US7413162B2 | Vacuum valve | Mechanical Engineering; Lighting; Heating | 13 | Active |
| US6698719B2 | Seal arrangement for a vacuum valve | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US8827241B2 | Door for sealing an opening | Mechanical Engineering; Lighting; Heating | 11 | Active |
| US8132782B2 | Method for controlling or regulating a vacuum valve | Emerging Cross-Sectional Technologies | 8 | Active |
| US7802772B2 | Pendulum and slide gate vacuum valve | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US7396001B2 | Valve for essentially gastight closing a flow path | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7036794B2 | Method for control of a vacuum valve arranged between two vacuum chambers | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7658367B2 | Valve essentially gastight closing of a flow path | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8097084B2 | Vacuum chamber system for semiconductor processing | Emerging Cross-Sectional Technologies | 6 | Active |
| US8622368B2 | Flap transfer valve with pivotable valve closure beam | Electricity | 5 | Active |
| US9528614B2 | Vacuum valve and closure member for closing a flow path in a gas-tight manner by means of a linear movement | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8870157B2 | Flap transfer valve with valve cover | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10612674B2 | Valve, in particular a vacuum valve | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US6357475B1 | Pneumatic sequential control valve | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8870158B2 | Flap transfer valve with pivoting bearing | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.