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.
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
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