Frank A. Hagen
30Patents
13h-index
27Co-inventors
81Inventor score
Filing activity: Aug 3, 1990 → Apr 24, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6388615B1 | Micro cell architecture for mobile user tracking communication system | Electricity | 43 | Expired |
| US6995354B2 | Optoelectronic sensor device | Performing Operations; Transporting | 42 | Expired |
| US7297932B2 | Vehicle optoelectronic precipitation sensor with adjustable lens holder | Performing Operations; Transporting | 38 | Expired |
| US8051707B2 | Sensor arrangement | Electricity | 38 | Active |
| US6756937B1 | Stratospheric platforms based mobile communications architecture | Electricity | 33 | Expired |
| US6295440A | Multiple satellite mobile communications method and apparatus for hand-held terminals | Electricity | 30 | Expired |
| US6785553B2 | Position location of multiple transponding platforms and users using two-way ranging as a calibration reference for GPS | Physics | 30 | Expired |
| US6337980B1 | Multiple satellite mobile communications method and apparatus for hand-held terminals | Electricity | 28 | Expired |
| US6380893B1 | Ground-based, wavefront-projection beamformer for a stratospheric communications platform | Electricity | 28 | Expired |
| US6990314B1 | Multi-node point-to-point satellite communication system employing multiple geo satellites | Electricity | 24 | Expired |
| US6757546B1 | Synchronization method and apparatus for multi-platform communication system | Electricity | 23 | Expired |
| US6507314B2 | Ground-based, wavefront-projection beamformer for a stratospheric communications platform | Electricity | 23 | Expired |
| US7317916B1 | Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection | Electricity | 15 | Expired |
| US6963548B1 | Coherent synchronization of code division multiple access signals | Electricity | 13 | Expired |
| US5142291A | Passive microwave near-field tomographic imaging system and method | Physics | 9 | Expired |
| US7215954B1 | Resource allocation method for multi-platform communication system | Electricity | 8 | Expired |
| US8448914B2 | Sensor arrangement for a vehicle window | Performing Operations; Transporting | 8 | Active |
| US6914557B2 | Micro cell architecture for mobile user tracking communication system | Electricity | 8 | Expired |
| US6763242B1 | Resource assignment system and method for determining the same | Electricity | 6 | Expired |
| US6920309B1 | User positioning technique for multi-platform communication system | Electricity | 5 | Expired |
| US7890052B2 | Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection | Electricity | 4 | Active |
| US6868269B1 | Integrating coverage areas of multiple transponder platforms | Electricity | 4 | Expired |
| US7046718B1 | Coherent phase synchronous code division multiple access communications from multiple transponder platforms | Electricity | 4 | Expired |
| US7089000B1 | Multi-node wireless communication system with multiple transponding platforms | Electricity | 3 | Expired |
| US6291988A | Sensor device | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.