LITEF GmbH
75Patents
3Active
75Granted
39Portfolio score
Filing activity: Jul 19, 1985 → Apr 3, 2006 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4702600A | Method and apparatus for measuring angular rate with a passive optical resonator | Human Necessities | 71 | Expired |
| US5515683A | Thermoelectric heating or cooling device | Electricity | 58 | Expired |
| US6205401A | Navigation system for a vehicle, especially a land craft | Physics | 57 | Expired |
| US5959206A | Micromechanical rotation speed sensor | Physics | 33 | Expired |
| US5614742A | Micromechanical accelerometer with plate-like semiconductor wafers | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7481110B2 | Method for quadrature-bias compensation in a Coriolis gyro, as well as a Coriolis gyro which is suitable for this purpose | Physics | 27 | Expired |
| US5351123A | Method and apparatus for stabilizing control loop scale factor and gain in a fiber optic Sagnac interferometer | Physics | 25 | Expired |
| US4953834A | Pendulum with bending spring joint | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4924749A | Method and apparatus for stabilizing high-dynamics devices | Physics | 21 | Expired |
| US5133600A | Method and apparatus for demodulating the rotation rate signal of a fiber optic gyroscope | Physics | 20 | Expired |
| US5661735A | FDIC method for minimizing measuring failures in a measuring system comprising redundant sensors | Physics | 19 | Expired |
| US4870602A | Method for determining route angles | Physics | 19 | Expired |
| US4930085A | Method for determining the heading of an aircraft | Physics | 18 | Expired |
| US6760111B1 | Digital phase modulator | Physics | 16 | Expired |
| US6863832B1 | Method for producing a torsion spring | Performing Operations; Transporting | 16 | Expired |
| US7964428B2 | Micromechanical component and method for fabricating a micromechanical component | Electricity | 15 | Active |
| US5267264A | Synchronization and matching method for a binary baseband transmission system | Electricity | 15 | Expired |
| US4825261A | Method for reading out rotation rate with a passive optical resonator | Physics | 14 | Expired |
| US4702106A | Method for determining the horizontal airspeed of helicopters in low speed ranges | Physics | 13 | Expired |
| US7805993B2 | Operating method for a Coriolis gyro, and evaluation/control electronics which are suitable for this purpose | Physics | 13 | Active |
| US5485274A | Fiber optic interferometer with wavelength-stabilized light source | Physics | 13 | Expired |
| US5778073A | Method and device for speech encryption and decryption in voice transmission | Electricity | 12 | Expired |
| US6119517A | Micro-mechanical rate-of-rotation sensor with coupled structure | Physics | 12 | Expired |
| US6490923B1 | Micromechanical rpm sensor | Physics | 12 | Expired |
| US5504032A | Micromechanical accelerometer and method of manufacture thereof | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.