US PATENT SUBCLASS 562 / 107
.~.~.~ Chalcogen attached indirectly to the sulfonate group by acyclic nonionic bonding

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
30  DF  .~ Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium) {15}
104  DF  .~.~ Nitrogen attached indirectly to the sulfonate group by acyclic nonionic bonding {2}
107.~.~.~ Chalcogen attached indirectly to the sulfonate group by acyclic nonionic bonding

DEFINITION

Classification: 562/107

(under subclass 104) Compounds wherein the sulfonate group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium or tellurium) by acyclic nonionic bonding.

(1) Note. An example of a compound provided for herein is: [figure]