Patent assignee · US · COMPANY

General Photonics Corporation

61Patents
33Active
61Granted
48Portfolio score

Filing activity: Jan 6, 1999 → May 9, 2018 · 16 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7067795B1 Methods and systems for dynamic control of polarization of an optical signal Electricity 46 Expired
US6628850B1 Dynamic wavelength-selective grating modulator Electricity 43 Expired
US6487336B1 WDM channel equalization and control Physics 39 Expired
US6576886B1 Dynamic control of polarization of an optical signal Physics 33 Expired
US7027198B2 Generation and analysis of state of polarization using tunable optical polarization rotators Physics 32 Expired
US6493474B1 Fiber devices based on fiber squeezer polarization controllers Physics 31 Expired
US7218436B2 Optical instrument and measurements using multiple tunable optical polarization rotators Physics 31 Expired
US6480637B1 Fiber squeezer polarization controller with low activation loss Physics 28 Expired
US7436569B2 Polarization measurement and self-calibration based on multiple tunable optical polarization rotators Physics 26 Active
US6628861B1 Control of guided light in waveguide using external adjustable grating Physics 25 Expired
US7343100B2 Optical communications based on optical polarization multiplexing and demultiplexing Electricity 24 Expired
US6628862B1 Thermal-induced waveguide gratings Physics 23 Expired
US6836327B1 In-line optical polarimeter based on integration of free-space optical elements Physics 22 Expired
USRE38809E1 Photonic variable delay devices based on optical birefringence General 21 Expired
US6975454B1 Variable polarization-dependent-loss source Emerging Cross-Sectional Technologies 20 Expired
US7372568B1 Low cost polametric detector Physics 20 Active
US7157687B1 Optical devices with folded optical path designs Physics 20 Expired
US7382962B1 Fiber stretcher apparatus Physics 18 Active
US7265837B1 Sensitive polarization monitoring and controlling Physics 18 Expired
US7391977B2 Monitoring mechanisms for optical systems Electricity 17 Expired
US7534990B2 Compact optical delay devices Physics 17 Active
US6754404B2 Transverse-pressure-controlled fiber devices Physics 17 Expired
US6873783B1 Fiber devices with transverse-pressure-controlled squeezers Physics 17 Expired
USRE38735E1 Compact programmable photonic variable delay devices General 16 Expired
US6795616B2 Control of guided light in a waveguide Physics 16 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.