Patent assignee · US · COMPANY

Nistica, Inc.

31Patents
28Active
31Granted
51Portfolio score

Filing activity: Apr 25, 2005 → Mar 14, 2018 · 6 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8351789B2 High resolution digital optical encoder/decoder Electricity 47 Active
US7257288B1 Tunable optical routing systems Physics 23 Expired
US7408639B1 Tunable optical routing systems Electricity 14 Expired
US9019612B2 WSS using multiple technology switching elements Physics 10 Active
US8531756B2 Optical processing device Physics 5 Active
US7639906B1 Tunable optical communication system Physics 5 Active
US9632391B2 Wavelength selective switch employing a LCoS device and having reduced crosstalk Electricity 4 Active
US9091817B2 Asymmetric lenslet array Physics 4 Active
US9661406B2 Multipoint, contentionless wavelength selective switch (WSS) Electricity 4 Active
US8086080B2 Multiple function digital optical switch Physics 3 Active
US9521473B2 Wavelength selective switch with increased frequency separation to avoid crosstalk Electricity 3 Active
US9864148B1 Optical arrangement for suppressing outerband crosstalk in a wavelength selective switch Physics 3 Active
US9341870B1 Launch optics with optical path compensation for a wavelength selective switch Electricity 2 Active
US8681422B2 Optical processing device employing a digital micromirror device (DMD) and having reduced wavelength dependent loss Physics 2 Active
US9778421B2 Large scale optical switch using asymmetric 1×2 elements Physics 1 Active
US9881567B2 Flicker reduction in an LCoS array Physics 1 Active
US9031404B2 Optical channel monitor Electricity 1 Active
US10129615B2 Multipoint, contentionless wavelength selective switch (WSS) Electricity 1 Active
US10042121B1 Toroidal micro lens array for use in a wavelength selective switch Physics 1 Active
US7965911B1 Method of operating a tunable optical device Physics 1 Active
US8693818B2 Optical processing device Physics 0 Active
US8437642B2 Spatial light modulator (SLM)-based optical attenuator Physics 0 Active
US9755738B2 Crosstalk suppression in a multi-photodetector optical channel monitor Physics 0 Active
US10228517B2 Optical arrangement for managing diversity and isolation between ports in a wavelength selective switch Physics 0 Active
US10104456B2 Multipoint, contentionless wavelength selective switch (WSS) General 0 Revoked

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