US PATENT SUBCLASS 385 / 131
.~.~ Multilayer structure (mixture)

Current as of: June, 1999
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385 /   HD   OPTICAL WAVEGUIDES

129  DF  PLANAR OPTICAL WAVEGUIDE {1}
130  DF  .~ Thin film optical waveguide {2}
131.~.~ Multilayer structure (mixture)

DEFINITION

Classification: 385/131

Multilayer structure (mixture):

(under subclass 130) Subject matter wherein the optical waveguide is formed from a plurality of layers for the transmission of light therethrough.

(1) Note. This might include, for example, a semiconductor npn layer structure forming an optical waveguide structure.