US PATENT SUBCLASS 148 / 525
.~.~ Utilizing wave energy (e.g., laser, electromagnetic wave energy, etc.), plasma or electron arc or beam

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
516  DF  .~ Producing or treating layered, bonded, welded, or mechanically engaged article or stock as a final product {9}
525.~.~ Utilizing wave energy (e.g., laser, electromagnetic wave energy, etc.), plasma or electron arc or beam

DEFINITION

Classification: 148/525

Utilizing wave energy (e.g., laser, electromagnetic wave energy, etc.) plasma or electron arc or beam:

(under subclass 516) Process which utilizes wave energy (e.g., laser, electromagnetic wave energy, etc.), plasma or an electron arc or beam for (1) modifying or maintaining the internal physical structure (i.e., microstructure) or chemical properties of metal or a metal alloy or (2) in a combined process that includes a step of modifying or maintaining the internal physical structure or chemical properties of metal or a metal alloy, the use of electromagnetic wave energy, plasma, electron arc or beam for any purpose.

SEE OR SEARCH THIS CLASS, SUBCLASS:

565, for processes of treating nonlayered metal with electromagnetic wave energy or electron arc or beam.