What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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Class Number: 527 Class Title: SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES Subclass Subclass Number Title * SYNTHETIC RESINS (Class 520, Subclass 1) 100 .FROM REACTANT WHICH IS A CELLULAR MATERIAL DERIVED FROM PLANT OR ANIMAL SOURCE AND IS OTHER THAN DIATOMACEOUS EARTH, BLOOD, COTTON, OR FARINACEOUS FLOUR, E.G., CITRUS PULP, WALNUT SHELL FLOUR, ETC. 101 ..Animal derived, e.g., hair, leather, horn, etc. 102 ...With ethylenic reactant 103 ..Wood or wood cellulose fiber or flour 105 ...With aldehyde or derivative 200 .FROM PROTEIN OR BIOLOGICALLY ACTIVE POLYPEPTIDE REACTANT 201 ..With ethylenically unsaturated reactant 202 ...Polymerization in the presence of a specified material 203 ...With nonethylenically unsaturated reactant 204 ..With N=C=X reactant wherein X is chalcogen 205 ..With aldehyde or derivative or ketone reactant 206 ...With phenolic reactant 207 ..With carboxylic acid or derivative reactant 300 .FROM CARBOHYDRATE OR DERIVATIVE AS A REACTANT 301 ..With N=C=X reactant wherein X is chalcogen 302 ...Oxyalkylated carbohydrate 303 ..With phenolic reactant 304 ..With ketone reactant other than as a ketose 305 ..With aldehyde or derivative as a reactant other than as an aldose 306 ...Ethylenically unsaturated reactant 309 ...Nitrogen-containing reactant 310 ..With phosphorus-containing reactant 311 ..With di- or higher ester of polycarboxylic acid; or with polycarboxylic acid or derivative and a compound containing two or more hydroxyl groups or salts thereof as reactants 312 ..With nitrogen-containing reactant 313 ..Ethylenically unsaturated reactant 314 ...Unsaturated carboxylic acid or derivative reactant 315 ...With heterocyclic reactant other than carbohydrate 400 .FROM LIGNIN, TANNIN, OR DERIVATIVE REACTANT 401 ..With N=C=X reactant wherein X is chalcogen or polyepoxide reactant 403 ..With phenolic reactant 500 .FROM COAL OR BITUMINOUS MATERIAL, EXTRACT OR DERIVATIVE THEREOF, OR FATTY STILL RESIDUE REACTANT 501 ..With polyepoxide reactant or N=C=X reactant wherein X is chalcogen 503 ..With phenolic reactant or aldehyde reactant 600 .FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE 601 ..With polyepoxide reactant 602 ..With phenolic reactant 603 ...With ethylenically unsaturated reactant 604 ..With polycarboxylic acid or derivative and a compound having two or more hydroxyl groups as reactants