US PATENT SUBCLASS 423 / 452
.~.~.~.~ Including flame impinging on cool surface

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

414  DF  CARBON OR COMPOUND THEREOF {3}
445 R  DF  .~ Elemental carbon {7}
449.1  DF  .~.~ Carbon black (e.g., lampblack) {6}
450  DF  .~.~.~ Directly from fluid hydrocarbon only {6}
452.~.~.~.~ Including flame impinging on cool surface

DEFINITION

Classification: 423/452

(under subclass 450) Processes wherein the carbon is deposited from a flame by causing the flame to directly contact a relatively cool surface.