Inventor · Plainsboro, NJ, US

Fengnian Xia

30Patents
11h-index
24Co-inventors
71Inventor score

Filing activity: Jun 4, 2002 → Aug 31, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US6795622B2 Photonic integrated circuits Electricity 80 Expired
US7790495B2 Optoelectronic device with germanium photodetector Emerging Cross-Sectional Technologies 74 Active
US7515793B2 Waveguide photodetector Electricity 39 Expired
US8610617B1 Graphene based structures and methods for broadband electromagnetic radiation absorption at the microwave and terahertz frequencies Electricity 27 Active
US8053782B2 Single and few-layer graphene based photodetecting devices Emerging Cross-Sectional Technologies 26 Active
US8805148B2 Generation of terahertz electromagnetic waves in graphene by coherent photon-mixing Physics 21 Active
US8895417B2 Reducing contact resistance for field-effect transistor devices Electricity 16 Active
US7999344B2 Optoelectronic device with germanium photodetector Emerging Cross-Sectional Technologies 15 Active
US8987740B2 Graphene photodetector Emerging Cross-Sectional Technologies 12 Active
US9174413B2 Graphene based structures and methods for shielding electromagnetic radiation Emerging Cross-Sectional Technologies 12 Active
US8901689B1 Graphene photodetector Emerging Cross-Sectional Technologies 11 Active
US9174414B2 Graphene based structures and methods for shielding electromagnetic radiation Emerging Cross-Sectional Technologies 10 Active
US7880201B2 Optical modulator using a serpentine dielectric layer between silicon layers Physics 9 Active
US7333689B2 Photonic integrated devices having reduced absorption loss Electricity 7 Expired
US8139904B2 Method and apparatus for implementing optical deflection switching using coupled resonators Physics 7 Active
US7373048B2 Polarization insensitive semiconductor optical amplifier Electricity 5 Expired
US8378465B2 Method and apparatus for optical modulation Physics 5 Active
US8614435B2 Utilization of organic buffer layer to fabricate high performance carbon nanoelectronic devices Electricity 4 Active
US8614141B2 Utilization of organic buffer layer to fabricate high performance carbon nanoelectronic devices Electricity 4 Active
US8232516B2 Avalanche impact ionization amplification devices Emerging Cross-Sectional Technologies 3 Active
US7684666B2 Method and apparatus for tuning an optical delay line Physics 3 Active
US9455372B2 Method and apparatus for optical modulation Physics 3 Active
US10636654B2 Wafer-scale synthesis of large-area black phosphorus material heterostructures Electricity 2 Active
US10157338B2 Graphene-based micro-scale identification system Physics 1 Active
US9413075B2 Graphene based structures and methods for broadband electromagnetic radiation absorption at the microwave and terahertz frequencies Electricity 1 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.