Juha Ellä
60Patents
25h-index
27Co-inventors
88Inventor score
Filing activity: Oct 2, 1996 → Sep 22, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6992400B2 | Encapsulated electronics device with improved heat dissipation | Electricity | 311 | Expired |
| US5714917A | Device incorporating a tunable thin film bulk acoustic resonator for performing amplitude and phase modulation | Electricity | 219 | Expired |
| US6812619B1 | Resonator structure and a filter comprising such a resonator structure | Electricity | 206 | Expired |
| US5872493A | Bulk acoustic wave (BAW) filter having a top portion that includes a protective acoustic mirror | Electricity | 202 | Expired |
| US5910756A | Filters and duplexers utilizing thin film stacked crystal filter structures and thin film bulk acoustic wave resonators | Electricity | 195 | Expired |
| US6670866B2 | Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers | Electricity | 177 | Expired |
| US6204737A | Piezoelectric resonator structures with a bending element performing a voltage controlled switching function | Electricity | 145 | Expired |
| US6407649B1 | Monolithic FBAR duplexer and method of making the same | Emerging Cross-Sectional Technologies | 113 | Expired |
| US6081171A | Monolithic filters utilizing thin film bulk acoustic wave devices and minimum passive components for controlling the shape and width of a passband response | Electricity | 112 | Expired |
| US6278342A | Balanced filter structure utilizing bulk acoustic wave resonators having different areas | Electricity | 100 | Expired |
| US6788170B1 | Resonator structure having a dampening material and a filter having such a resonator structure | Electricity | 87 | Expired |
| US7786819B2 | Apparatus comprising an antenna element, which efficiently performs at both a first resonant frequency band and a second resonant frequency band, method and computer program therefore | Electricity | 86 | Active |
| US6518860B2 | BAW filters having different center frequencies on a single substrate and a method for providing same | Emerging Cross-Sectional Technologies | 81 | Expired |
| US6963257B2 | Coupled BAW resonator based duplexers | Electricity | 81 | Expired |
| US6548943B2 | Method of producing thin-film bulk acoustic wave devices | Electricity | 75 | Expired |
| US6862441B2 | Transmitter filter arrangement for multiband mobile phone | Electricity | 68 | Expired |
| US7187945B2 | Versatile antenna switch architecture | Electricity | 64 | Expired |
| US6496085B2 | Solidly mounted multi-resonator bulk acoustic wave filter with a patterned acoustic mirror | Emerging Cross-Sectional Technologies | 50 | Expired |
| US6242843A | Resonator structures | Electricity | 48 | Expired |
| US6441702B1 | Method and system for wafer-level tuning of bulk acoustic wave resonators and filters | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6990357B2 | Front-end arrangements for multiband multimode communication engines | Electricity | 42 | Expired |
| US6751470B1 | Versatile RF front-end multiband mobile terminals | Electricity | 41 | Expired |
| US7155252B2 | Mimo and diversity front-end arrangements for multiband multimode communication engines | Electricity | 36 | Expired |
| US6943647B2 | Bulk acoustic wave filter with a roughened substrate bottom surface and method of fabricating same | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6509813B2 | Bulk acoustic wave resonator with a conductive mirror | Emerging Cross-Sectional Technologies | 30 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.