USPC Class Details

Description: 516 colloid systems and wetting agents; subcombinations thereof; processes of / 516 colloid systems and wetting agents; subcombinations thereof; processes of/(113) compositions containing an agent for breaking (resolving) or inhibiting colloid systems; processes of breaking (resolving) or inhibiting colloid systems (e.g., gel breaking or inhibiting, coagulating, flocculating); processes of preparing the compositions (135) continuous liquid phase colloid system and discontinuous liquid phase (e.g., breaking an emulsion) (139) the agent contains material which is different from the primary components of both liquid phases of the emulsion colloid system (i.e., more than only diluting) (141) aqueous-petroleum, petroleum-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsion systems (143) the agent contains organic compound (161) the compound contains nitrogen, except if present solely as nh4+ (e.g., nitroso phenol) (164) the compound contains polymer of substituted or unsubstituted phenol and substituted or unsubstituted aldehyde (165) the compound contains -c(=o)nhh where substitution may be made for the hydrogen

Hierarchy/Derived subclasses

516 / 113-> resolving -> 135-> 139-> 141-> 143-> 161-> 164-> 165

uspto searches

Patent Apps in 516/165

Granted Patents in 516/165

Use the links above or do an advanced search in ppubs for:
(516/165.ccls.)

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