US PATENT SUBCLASS 204 / 513
.~.~ Hydrocarbon oil separated or purified

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

Internet Version by PATENTEC © 1999      Terms of Use


204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
450  DF  .~ Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere {14}
513.~.~ Hydrocarbon oil separated or purified {1}
514  DF  .~.~.~> Aqueous system

DEFINITION

Classification: 204/513

Hydrocarbon oil separated or purified:

(under subclass 450) Process directed to the separation or purification of hydrocarbon oil.

SEE OR SEARCH THIS CLASS, SUBCLASS:

559+, for electrical separation or purification of a liquid hydrocarbon (including hydrocarbon oil) not involving electrolysis, electrophoresis, or electro-osmosis.

SEE OR SEARCH CLASS

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

696, for electrolytic material treatment of hydrocarbon oil.

208, Mineral Oils: Processes and Products, for processes of treatment and preparation of mineral oils employing mere

electrical thermal effects.