US PATENT SUBCLASS 516 / FOR 133
.~.~.~.~ Resolving aqueous-petroleum or aqueous-hydrocarbon systems (252/328)


Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

FOR 100  DF  COLLOIDS AND POTENTIAL COLLOIDS; CHEMICAL PROCESSES OF MAKING AND BREAKING (252/302) {8}
FOR 124  DF  .~ Resolving colloids or inhibiting colloidization (252/319) {1}
FOR 125  DF  .~.~ Liquid primary dispersants (252/320) {5}
FOR 131  DF  .~.~.~ Added nongaseous dissimilar treating substances (252/326) {2}
FOR 133.~.~.~.~ Resolving aqueous-petroleum or aqueous-hydrocarbon systems (252/328) {3}
FOR 134  DF  .~.~.~.~.~> Organic and inorganic agents (except water) (252/329)
FOR 135  DF  .~.~.~.~.~> Inorganic agents (except water) (252/330)
FOR 136  DF  .~.~.~.~.~> Organic agents (252/331) {4}


DEFINITION

Classification: 516/FOR.133

Foreign art collections including processes under subclass 326 in which the colloid systems treated, or formation thereof inhibited, include colloidal dispersions of water in petroleum or hydrocarbons or vice versa.