Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Optical device and bidirectional communications system

Optical device and bidirectional communications system

US Patent 5859940 · Granted Jan 12, 1999

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of evaluating fatty liver related disease, fatty liver related disease-ev2018
Hepatic disease-evaluating apparatus, hepatic disease-evaluating method, hepatic2012
Aniline derivatives2011
Light-emitting device with a protection layer to prevent the inter-diffusion of 2010
Device for measuring filter pressure loss2009
Cement admixture, cement composition, and cement concrete made therefrom2008
Benzamidine derivatives2008
Vertical cavity surface emitting laser diode having a high reflective distribute2008
Thermoopic type variable optical attenuator and array type variable optical atte2007
Cement composition2005
Benzodiazepine derivatives2004
Turbine frame, turbine assembling method and turbine assembling and transporting2004