Andreas Langer
74Patents
11h-index
56Co-inventors
81Inventor score
Filing activity: Sep 12, 1997 → Jan 25, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5984389A | Bumper | Performing Operations; Transporting | 51 | Expired |
| US8884696B2 | Control circuit and method for controlling an operation of a power amplifier | Electricity | 46 | Active |
| US8175554B2 | Radio frequency communication devices and methods | Electricity | 34 | Active |
| US9973370B1 | Memory predistortion in bandwidth limited envelope tracking | Electricity | 33 | Active |
| US8096971B2 | Dual chamber container for lyophilization, process for the filling up and use thereof | Human Necessities | 26 | Active |
| US11121684B2 | Method and apparatus for digital envelope tracking with dynamically changing voltage levels for power amplifier | Electricity | 21 | Active |
| US8002734B2 | Dual chamber container and process for its filling up | Human Necessities | 18 | Active |
| US9450553B2 | Apparatus and a method for amplifying a transmit signal | Electricity | 17 | Active |
| US8761698B2 | Transmit circuit, method for adjusting a bias of a power amplifier and method for adapting the provision of a bias information | Electricity | 12 | Active |
| US9124316B2 | Transmit circuit, method for adjusting a bias of a power amplifier and method for adapting the provision of a bias information | Electricity | 12 | Active |
| US7991437B2 | Method and apparatus for controlling output power in power amplifiers | Electricity | 12 | Active |
| US8824981B2 | Recalibration of envelope tracking transfer function during active transmission | Electricity | 11 | Active |
| US9461590B2 | Envelope tracking in connection with simultaneous transmission in one or more frequency bands | Electricity | 11 | Active |
| US8737940B1 | Envelope tracking system and method for calibrating a supply voltage of an envelope tracking power amplifier | Electricity | 9 | Active |
| US7688136B2 | Shared linearity maintenance in power amplifiers | Electricity | 9 | Active |
| US6152385A | Covering device for an opening in the outer shell of a motor vehicle | Performing Operations; Transporting | 8 | Expired |
| US9007126B2 | Multi-mode amplifier system | Electricity | 7 | Active |
| US9225308B2 | Apparatus and method for amplifying a transmit signal or for determining values of a delay control parameter | Electricity | 7 | Active |
| US10128872B2 | Enabling radio frequency multiplexing in a wireless system | Electricity | 7 | Active |
| US7557653B2 | Shared linearity maintenance in power amplifiers | Electricity | 6 | Active |
| US9425742B2 | Method and apparatus for correcting inconvenient power amplifier load characteristics in an envelope tracking based system | Electricity | 6 | Active |
| US8014738B2 | Method and apparatus for optimizing output power levels in power amplifiers | Electricity | 6 | Active |
| US10513555B2 | Antibody formulations and methods | Chemistry; Metallurgy | 5 | Active |
| US8712496B2 | Endotracheal tube | Human Necessities | 4 | Active |
| US8655293B2 | PA bias optimization for modulation schemes with variable bandwidth | Electricity | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.