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Class Number: 501
Class Title: COMPOSITIONS: CERAMIC
Subclass Subclass
Number Title
1 CERAMIC COMPOSITIONS
2 .Devitrified glass-ceramics
3 ..Halogen containing crystalline phase (e.g., fluormica, etc.)
4 ..Silica containing crystalline phase (e.g., stuffed quartz,
crystobalite, etc.)
5 ..Binary, ternary, quaternary, etc., metal silicate crystalline
phase (e.g., mullite, diopside, sphene, plagioclase,
slagcerams free of alumina, etc.)
6 ...Alkali metal aluminosilicate crystalline phase
7 ....Lithium aluminosilicate (e.g., spodumeme, eucryptite,
petalite, etc.)
8 ...Divalent metal oxide aluminosilicate crystalline phase (e.g.,
anorthite, slagcerams, etc.)
9 ....Magnesium aluminosilicate (e.g., cordierite, etc.)
10 ..Nonsilica and nonsilicate crystalline phase (e.g., spinel,
barium titanate, etc.)
11 .Glass compositions, compositions containing glass other than
those wherein glass is a bonding agent, or glass batch forming
compositions
12 ..Made by gel route
13 ..Radiation color change responsive
14 ..Enamels, glazes, or fusion seals (e.g., raw, fritted, or
calcined ingredients)
15 ...Fusion seals (frit plus material other than glass)
16 ...Plural diverse frits
17 ...Frit plus material other than glass (e.g., color, opacifier,
mill additions, etc.)
18 ....Titanium or zirconium compound as other material
19 ....Free metal as other material
20 ....With vehicle or suspending agent (i.e., slip)
21 ...Chemically specified frit compositions
22 ....Lead containing
23 .....And titanium or zirconium
24 ....Phosphorous containing
25 ....Halogen containing
26 ....Zinc containing
27 ..Glass batch forming compositions (i.e., glass batch
compositions)
28 ...Slag containing
29 ...Pellet or agglomerate containing
30 ...Halogen containing
31 ...Uncombined silica containing (e.g., sand)
32 ..Glass and material other than glass (e.g., crystal glass, opal
glass, etc.)
33 ..Beads
34 ...Reflective
35 ..Fibers
36 ...Mineral fibers (e.g., slag wool, rock wool, mineral wool,
etc.)
37 ...Optical fibers
38 ...Titanium or zirconium containing
39 ..Pore-formingg
40 ..Nonoxide glasses (e.g., fluoride glasses, etc.)
41 ..Nonsilicate oxide glasses
42 ...Germanium containing
43 ...Halogen containing
44 ....Fluorine and phosphorus containing
45 ...Phosphorus containing
46 ....And titanium, zirconium, vanadium, tungsten, or molybdenum
47 ....And boron
48 ....And aluminum or beryllium
49 ...Boron containing
50 ....And yttrium or rare earth (i.e., elements with atomic
numbers 39, 57-71, or 89+)
51 .....And zirconium, titanium, tantalum, or niobium
52 ....And aluminum or beryllium
53 ..Silica containing
54 ...More than 90 percent by weight silica
55 ...40 percent - 90 percent by weight silica
56 ....And halogen or nitrogen
57 .....Fluorine
58 ......And boron
59 .......And aluminum
60 ....And lead
61 .....And boron
62 .....And aluminum
63 ....And phosphorus, niobium, or tantalum
64 ....And yttrium or rare earth (i.e., elements with atomic
numbers 39 or 57-71)
65 ....And boron
66 .....And aluminum
67 ......And zinc or zirconium
68 ....And aluminum or iron compound
69 .....And divalent metal oxide (e.g., oxides of zinc, cadmium,
beryllium, alkaline earth metal, magnesium, etc.)
70 ......Calcium oxide containing
71 .......And chromium, nickel, or cobalt
72 ....And divalent metal oxide (e.g., oxides of zinc, cadmium,
beryllium, alkaline earth metal, magnesium, etc.)
73 ...Less than 40 percent by weight silica
74 ....And lead
75 .....And boron
76 ......And zinc
77 ....And boron
78 .....And rare earth (i.e., elements with atomic number 39 or
57-71)
79 .....And zinc
80 .Pore-forming
81 ..By use of organic combustible material
82 ...Of resin or vegetable origin material
83 ....Of cellulosic material
84 ..By gas blowing, foaming agent, or in situ reactive gas
generation
85 ..By volatilizing or heat expansion of water or other
noncombustible material
86 .Synthetic precious stones (e.g., single crystals, etc.)
87 .Carbide or oxycarbide containing
88 ..Silicon carbide
89 ...And aluminum compound
90 ...And carbonaceous materiall
91 ...And different carbide
92 ...And boride, silicide, nitride, or oxynitride
93 ..Plural carbides (i.e., carbides of plural metals) containing
94 .Refractory
95 ..Fiber or fiber containing
96 ..Boride, silicide, nitride, or oxynitride containing
97 ...Silicon nitride or silicon oxynitride containing
98 ...And trivalent metal compound containing (e.g., clay, yttrium
oxide, sialon, etc.)
99 ..Elemental carbon containing
100 ...And aluminum compound (e.g., clay, aluminum oxide, etc.)
101 ...And alkaline earth metal or magnesium compound (e.g.,
dolomite, magnesium oxide, etc.)
102 ..Zirconium compound containing
103 ...Zirconium oxide
104 ....And alkaline earth metal or magnesium compound
105 ....And aluminum compound (e.g., clay, aluminum oxide, etc.)
106 ...Zirconium silicate
107 ....And aluminum compound (e.g., clay, aluminum oxide, etc.)
108 ..Magnesium compound containing
109 ...With organic material in starting mixture
110 ....And iron or chromium compound
111 ...And phosphorus compound
112 ...And iron compound
113 ....Dolomite containing
114 ....And chromium compound
115 .....Fused cast or fused material containing
116 .....Chemical binder containing
117 ...And chromium compound
118 ...And aluminum compound
119 ....Aluminum compound other than clay
120 .....Spinel or other aluminate
121 ...Less than 90 percent by weight magnesium compound
122 ...And silicon compound
123 ..Alkaline earth metal compound containing
124 ...Hydraulic cement containing
125 ...And aluminum compound
126 ..Trivalent metal compound (e.g., iron oxide, chromium oxide,
trivalent rare earth oxide, etc.) containing
127 ...Aluminum compound (e.g., clay, aluminium oxide, etc.)
128 ....And silicon compound other than clay
129 .....And silica-clay mixtures
130 .....And clay containing
131 ......Less than 40 percent by weight clay
132 ...Chromium compound containing
133 ..Silica containing
134 .Titanate, zirconate, stannate, niobate, or tantalate or oxide
of titanium, zirconium, tin, niobium, or tantalum containing
(e.g., dielectrics, etc.)
135 ..Alkaline earth or magnesium containing
136 ...Titanate containing
137 ....Barium titanate
138 .....And divalent metal oxide other than alkaline earth oxide or
magnesium oxide
139 .....And trivalent metal oxide
140 .Elemental sulfur containing
141 .Clay containing (e.g., porcelain, earthenware, etc.)
142 ..And phosphorus (e.g., bone china, etc.))
143 ..And flint or feldspar
144 ...Kaolin (e.g., ball clay, fire clay, etc.) containing
145 ..Clay pretreatment
146 ...Chemical pretreatment
147 ....Using alkaline compound treating agent
148 ....Using organic substance as treating agent
149 ...Water pretreatment
150 ...Heat pretreatment
151 .Fluorine containing
152 .Yttrium, lanthanide, actinide, or transactinide containing
(i.e., atomic numbers 39 or 57-71 or 89+)
153 .Aluminum compound containing
154 .Silicon compound containing
155 .Composed of waste material
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* CROSS-REFERENCE ART COLLECTIONS
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900 .Optical glass (e.g., silent on refractive index and/or Abbe
number)
901 ..Having R.I. at least 1.8
902 ..Having Abbe number at least 70
903 ..Having refractive index less than 1.8 and Abbe number less
than 70
904 ..Infrared transmitting or absorbing
905 ..Ultraviolet transmitting or absorbing
906 ..Thorium oxide containing