US PATENT SUBCLASS 427 / 554
.~.~.~ Laser

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
532  DF  .~ Pretreatment of substrate or post-treatment of coated substrate {9}
553  DF  .~.~ Low energy electromagnetic radiation (e.g., microwave, radio wave, IR, UV, visible, actinic, laser, etc.) {2}
554.~.~.~ Laser {1}
555  DF  .~.~.~.~> Nonuniform or patterned coating {1}

DEFINITION

Classification: 427/554

Laser:

(under subclass 553) Processes wherein a narrow beam of coherent light (light amplification by simulated emissions of radiation) is utilized to treat the substrate or coated substrate.

SEE OR SEARCH CLASS

219, Electric Heating,

121.11+, for processes utilizing electric heat energy, per se, wherein the heat source is an electron beam, plasma, arc, laser, etc. Documents should be placed in Class 427 as originals if a coating operation is claimed in combination with an electric heating step to treat a substrate before or after coating.