US PATENT SUBCLASS 65 / 386
.~.~ Planar waveguides

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
385  DF  .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29}
386.~.~ Planar waveguides

DEFINITION

Classification: 65/386

Planar waveguides:

(under subclass 385) Processes wherein the material which transmits light has a surface that is flat.

(1) Note. Processes of forming multiple layered optical planar waveguides are properly classified here.

SEE OR SEARCH CLASS

385, Optical Waveguides,

129, for planar optical waveguides, per se.