Inventor · Norton, GB

Stephen Day

31Patents
12h-index
32Co-inventors
81Inventor score

Filing activity: Nov 22, 1982 → Mar 24, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US4611227A Decoder for digital information T.V. signal Electricity 121 Expired
US5255002A Antenna for vehicle window Electricity 80 Expired
US5448250A Laminar microstrip patch antenna Electricity 75 Expired
US5633645A Patch antenna assembly Electricity 48 Expired
US4931725A Electronic electricity meters Physics 45 Expired
US5287214A Fabry-Perot optical filters Physics 32 Expired
US6266464A Optical arrayed waveguide grating devices Physics 27 Expired
US5930439A Planar optical waveguide Physics 25 Expired
US6044192A Waveguide pair with cladding Physics 22 Expired
US8613997B2 Laminated glazing panel Emerging Cross-Sectional Technologies 21 Active
US4950045A Single mode couplers Physics 17 Expired
US6714702B2 Optical demultiplexing system and method Physics 13 Expired
US8836592B2 Vehicle glazing with slot antenna Electricity 10 Active
US5956437A Electrically controllable optical attenuator Physics 7 Expired
US6643059B1 Optical array amplifier Electricity 6 Expired
US8833989B2 Vehicle glazing Mechanical Engineering; Lighting; Heating 5 Expired
US7947548B2 Multifunctional tape Electricity 5 Active
US8173908B2 Device interconnects Electricity 2 Active
US9333906B2 Vehicle glazing with light emitting diode device and transparent encapsulant Mechanical Engineering; Lighting; Heating 2 Active
US8975618B2 Energy conversion device with selective contacts Emerging Cross-Sectional Technologies 1 Active
US9967922B2 Glazing Electricity 1 Active
US8194197B2 Integrated display and photovoltaic element Physics 0 Active
US7995094B2 Glazing inspection Physics 0 Active
US8362553B2 Multifunctional tape Electricity 0 Active
US11764781B2 Switching device Electricity 0 Active

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