Hans-Peter Klein
13Patents
5h-index
26Co-inventors
66Inventor score
Filing activity: Jun 14, 1977 → Jul 22, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5295486A | Transesophageal echocardiography device | Emerging Cross-Sectional Technologies | 216 | Expired |
| US5105819A | Ultrasound endoscope device | Human Necessities | 155 | Expired |
| US4252415A | Liquid crystal cell and process for its production | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4759849A | Process and a device for the treatment, by means of ozone, of feed water for reverse osmosis | Chemistry; Metallurgy | 22 | Expired |
| US4127511A | Ceramic electrical resistor with nonlinear voltage characteristic | Electricity | 9 | Expired |
| US4090892A | Permanent magnetic material which contains rare earth metals, especially neodymium, and cobalt process for its production and its use | Electricity | 5 | Expired |
| US4174303A | Ceramic electrical material with high nonlinear resistance | Electricity | 2 | Expired |
| US7938106B2 | Device for controlling an exhaust gas stream | Emerging Cross-Sectional Technologies | 1 | Active |
| US10203044B2 | Electrically actuated valve | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9632518B2 | Thermostat | Physics | 0 | Active |
| US11940481B2 | Electrical connection test for unpopulated printed circuit boards | Electricity | 0 | Active |
| US9371772B2 | Supercharged internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US10539249B2 | Electrically drivable valve for controlling volumetric flows in a heating and/or cooling system of a motor vehicle | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.