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
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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: 512 Class Title: PERFUME COMPOSITIONS Subclass Subclass Number Title 1 PERFUME COMPOSITIONS 2 .With preservative, stabilizer, or fixative 3 .With specified extender 4 .Nonliquid or encapsulated 5 .Animal or plant extract active ingredient 6 .Cyano containing active ingredient 7 .Boron, metal, or acyclic sulfur containing active ingredient 8 .Ring containing active ingredient 9 ..Spiro 10 ..Nitrogen in the ring 11 ..Chalcogen in the ring 12 ...Plural chalcogens in the ring 13 ...Polycyclo ring system having the chalcogen containing ring as one of the cyclos 14 ..Polycyclo carbocyclic ring system 15 ...Oxygen double bonded directly to the ring system 16 ...Carbonyl bonded directly to the ring system 17 ....The ring system is bicyclo 18 ...Carbonyl attached indirectly to the ring system by nonionic bonding 19 ...Oxygen single bonded directly to the ring system 20 ..Benzene ring 21 ...Acyclic carbonyl containing 22 ..Six-membered alicyclic ring 23 ...Oxygen bonded directly to the ring 24 ...Carbonyl bonded directly to the ring 25 .Oxygen containing active ingredient 26 ..The oxygen is part of a carbonyl group 27 ...The carbonyl is part of an aldehyde or ketone group