US PATENT SUBCLASS 426 / 313
.~ Gas is hydrogen, e.g., hydrogenation, etc.

Current as of: June, 1999
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426 /   HD   FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS

312  DF  CONTACTING FOOD IN LIQUID OR SOLID STATE WITH EXTERIORLY PRODUCED GAS {7}
313.~ Gas is hydrogen, e.g., hydrogenation, etc.

DEFINITION

Classification: 426/313

(under subclass 312) Processes wherein the gas is hydrogen.

(1) Note. Most of the patents herein relate to hydrogenation, i.e., the addition of hydrogen across an unsaturated carbon to carbon bond in order to cause saturation of the bond.

SEE OR SEARCH CLASS

260, Chemistry of Carbon Compounds, appropriate subclasses according to the product desired and in particular

690, for hydrogenation processes.