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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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