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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 501 | COMPOSITIONS: CERAMIC |
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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 |
8 | Divalent metal oxide aluminosilicate crystalline phase (e.g., anorthite, slagcerams, 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 |
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 |
35 | Fibers |
36 | Mineral fibers (e.g., slag wool, rock wool, mineral wool, etc.) |
37 | Optical fibers |
38 | Titanium or zirconium containing |
39 | Pore-forming |
40 | Nonoxide glasses (e.g., fluoride glasses, etc.) |
41 | Nonsilicate oxide glasses |
42 | Germanium containing |
43 | Halogen containing |
45 | Phosphorus containing |
46 | And titanium, zirconium, vanadium, tungsten, or molybdenum |
47 | And boron |
48 | And aluminum or beryllium |
49 | Boron containing |
53 | Silica containing |
54 | More than 90 percent by weight silica |
55 | 40 percent - 90 percent by weight silica |
56 | And halogen or nitrogen |
60 | And lead |
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 |
68 | And aluminum or iron compound |
69 | And divalent metal oxide (e.g., oxides of zinc, cadmium, beryllium, alkaline earth metal, magnesium, etc.) |
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 |
80 | Pore-forming |
81 | By use of organic combustible 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 material |
91 | And different carbide |
92 | And boride, silicide, nitride, or oxynitride |
93 | Plural carbides (i.e., carbides of plural metals) containing |
94 | Refractory |
95.1 | Fiber or fiber containing |
96.1 | Boride, silicide, nitride, oxynitride, carbonitride, or oxycarbonitride containing |
96.2 | From organometallic precursor |
96.3 | Boride or silicide containing |
96.4 | Boron nitride containing |
96.5 | Silicon oxynitride, silicon carbonitride, or silicon oxycarbonitride containing (i.e., SiAOBNC, SiACBNC, or SiAOBCcND) |
97.1 | Silicon nitride containing (Si3N4) |
97.2 | With trivalent metal compound (e.g., yttrium, rare earth, or aluminum compound, etc.) |
97.4 | Composites (continuous matrix with dispersed phase) |
98.1 | Silicon aluminum oxynitride containing (i.e., SiAION compounds) |
98.2 | With rare earth or alkaline earth metal compound |
98.3 | Composites (continuous matrix with dispersed phase) |
98.4 | Aluminum nitride containing (AIN) |
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 |
108 | Magnesium compound containing |
109 | With organic material in starting mixture |
111 | And phosphorus compound |
112 | And iron compound |
117 | And chromium compound |
118 | And aluminum compound |
121 | Less than 90 percent by weight magnesium compound |
122 | And silicon compound |
123 | Alkaline earth metal compound containing |
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.) |
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.) |
140 | Elemental sulfur containing |
141 | Clay containing (e.g., porcelain, earthenware, etc.) |
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 |
CROSS-REFERENCE ART COLLECTIONS | ||
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 |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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