US Patent Class 501
COMPOSITIONS: CERAMIC




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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  CERAMIC COMPOSITIONS
2  DF  .~ Devitrified glass-ceramics
3  DF  .~.~ Halogen containing crystalline phase (e.g., fluormica, etc.)
4  DF  .~.~ Silica containing crystalline phase (e.g., stuffed quartz, crystobalite, etc.)
5  DF  .~.~ Binary, ternary, quaternary, etc., metal silicate crystalline phase (e.g., mullite, diopside, sphene, plagioclase, slagcerams free of alumina, etc.)
6  DF  .~.~.~ Alkali metal aluminosilicate crystalline phase
7  DF  .~.~.~.~ Lithium aluminosilicate (e.g., spodumeme, eucryptite, petalite, etc.)
8  DF  .~.~.~ Divalent metal oxide aluminosilicate crystalline phase (e.g., anorthite, slagcerams, etc.)
9  DF  .~.~.~.~ Magnesium aluminosilicate (e.g., cordierite, etc.)
10  DF  .~.~ Nonsilica and nonsilicate crystalline phase (e.g., spinel, barium titanate, etc.)
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions
12  DF  .~.~ Made by gel route
13  DF  .~.~ Radiation color change responsive
14  DF  .~.~ Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients)
15  DF  .~.~.~ Fusion seals (frit plus material other than glass)
16  DF  .~.~.~ Plural diverse frits
17  DF  .~.~.~ Frit plus material other than glass (e.g., color, opacifier, mill additions, etc.)
18  DF  .~.~.~.~ Titanium or zirconium compound as other material
19  DF  .~.~.~.~ Free metal as other material
20  DF  .~.~.~.~ With vehicle or suspending agent (i.e., slip)
21  DF  .~.~.~ Chemically specified frit compositions
22  DF  .~.~.~.~ Lead containing
23  DF  .~.~.~.~.~ And titanium or zirconium
24  DF  .~.~.~.~ Phosphorous containing
25  DF  .~.~.~.~ Halogen containing
26  DF  .~.~.~.~ Zinc containing
27  DF  .~.~ Glass batch forming compositions (i.e., glass batch compositions)
28  DF  .~.~.~ Slag containing
29  DF  .~.~.~ Pellet or agglomerate containing
30  DF  .~.~.~ Halogen containing
31  DF  .~.~.~ Uncombined silica containing (e.g., sand)
32  DF  .~.~ Glass and material other than glass (e.g., crystal glass, opal glass, etc.)
33  DF  .~.~ Beads
34  DF  .~.~.~ Reflective
35  DF  .~.~ Fibers
36  DF  .~.~.~ Mineral fibers (e.g., slag wool, rock wool, mineral wool, etc.)
37  DF  .~.~.~ Optical fibers
38  DF  .~.~.~ Titanium or zirconium containing
39  DF  .~.~ Pore-forming
40  DF  .~.~ Nonoxide glasses (e.g., fluoride glasses, etc.)
41  DF  .~.~ Nonsilicate oxide glasses
42  DF  .~.~.~ Germanium containing
43  DF  .~.~.~ Halogen containing
44  DF  .~.~.~.~ Fluorine and phosphorus containing
45  DF  .~.~.~ Phosphorus containing
46  DF  .~.~.~.~ And titanium, zirconium, vanadium, tungsten, or molybdenum
47  DF  .~.~.~.~ And boron
48  DF  .~.~.~.~ And aluminum or beryllium
49  DF  .~.~.~ Boron containing
50  DF  .~.~.~.~ And yttrium or rare earth (i.e., elements with atomic numbers 39, 57-71, or 89+)
51  DF  .~.~.~.~.~ And zirconium, titanium, tantalum, or niobium
52  DF  .~.~.~.~ And aluminum or beryllium
53  DF  .~.~ Silica containing
54  DF  .~.~.~ More than 90 percent by weight silica
55  DF  .~.~.~ 40 percent - 90 percent by weight silica
56  DF  .~.~.~.~ And halogen or nitrogen
57  DF  .~.~.~.~.~ Fluorine
58  DF  .~.~.~.~.~.~ And boron
59  DF  .~.~.~.~.~.~.~ And aluminum
60  DF  .~.~.~.~ And lead
61  DF  .~.~.~.~.~ And boron
62  DF  .~.~.~.~.~ And aluminum
63  DF  .~.~.~.~ And phosphorus, niobium, or tantalum
64  DF  .~.~.~.~ And yttrium or rare earth (i.e., elements with atomic numbers 39 or 57-71)
65  DF  .~.~.~.~ And boron
66  DF  .~.~.~.~.~ And aluminum
67  DF  .~.~.~.~.~.~ And zinc or zirconium
68  DF  .~.~.~.~ And aluminum or iron compound
69  DF  .~.~.~.~.~ And divalent metal oxide (e.g., oxides of zinc, cadmium, beryllium, alkaline earth metal, magnesium, etc.)
70  DF  .~.~.~.~.~.~ Calcium oxide containing
71  DF  .~.~.~.~.~.~.~ And chromium, nickel, or cobalt
72  DF  .~.~.~.~ And divalent metal oxide (e.g., oxides of zinc, cadmium, beryllium, alkaline earth metal, magnesium, etc.)
73  DF  .~.~.~ Less than 40 percent by weight silica
74  DF  .~.~.~.~ And lead
75  DF  .~.~.~.~.~ And boron
76  DF  .~.~.~.~.~.~ And zinc
77  DF  .~.~.~.~ And boron
78  DF  .~.~.~.~.~ And rare earth (i.e., elements with atomic number 39 or 57-71)
79  DF  .~.~.~.~.~ And zinc
80  DF  .~ Pore-forming
81  DF  .~.~ By use of organic combustible material
82  DF  .~.~.~ Of resin or vegetable origin material
83  DF  .~.~.~.~ Of cellulosic material
84  DF  .~.~ By gas blowing, foaming agent, or in situ reactive gas generation
85  DF  .~.~ By volatilizing or heat expansion of water or other noncombustible material
86  DF  .~ Synthetic precious stones (e.g., single crystals, etc.)
87  DF  .~ Carbide or oxycarbide containing
88  DF  .~.~ Silicon carbide
89  DF  .~.~.~ And aluminum compound
90  DF  .~.~.~ And carbonaceous material
91  DF  .~.~.~ And different carbide
92  DF  .~.~.~ And boride, silicide, nitride, or oxynitride
93  DF  .~.~ Plural carbides (i.e., carbides of plural metals) containing
94  DF  .~ Refractory
95.1  DF  .~.~ Fiber or fiber containing
95.2  DF  .~.~.~ Composites (continuous matrix with dispersed fiber phase)
95.3  DF  .~.~.~.~ Whisker containing
96.1  DF  .~.~ Boride, silicide, nitride, oxynitride, carbonitride, or oxycarbonitride containing
96.2  DF  .~.~.~ From organometallic precursor
96.3  DF  .~.~.~ Boride or silicide containing
96.4  DF  .~.~.~ Boron nitride containing
96.5  DF  .~.~.~ Silicon oxynitride, silicon carbonitride, or silicon oxycarbonitride containing (i.e., SiAOBNC, SiACBNC, or SiAOBCcND)
97.1  DF  .~.~.~ Silicon nitride containing (Si3N4)
97.2  DF  .~.~.~.~ With trivalent metal compound (e.g., yttrium, rare earth, or aluminum compound, etc.)
97.3  DF  .~.~.~.~.~ With alkaline earth metal compound
97.4  DF  .~.~.~.~ Composites (continuous matrix with dispersed phase)
98.1  DF  .~.~.~ Silicon aluminum oxynitride containing (i.e., SiAION compounds)
98.2  DF  .~.~.~.~ With rare earth or alkaline earth metal compound
98.3  DF  .~.~.~.~ Composites (continuous matrix with dispersed phase)
98.4  DF  .~.~.~ Aluminum nitride containing (AIN)
98.5  DF  .~.~.~.~ With alkaline earth metal compound
98.6  DF  .~.~.~.~ Composites (continuous matrix with dispersed phase)
99  DF  .~.~ Elemental carbon containing
100  DF  .~.~.~ And aluminum compound (e.g., clay, aluminum oxide, etc.)
101  DF  .~.~.~ And alkaline earth metal or magnesium compound (e.g., dolomite, magnesium oxide, etc.)
102  DF  .~.~ Zirconium compound containing
103  DF  .~.~.~ Zirconium oxide
104  DF  .~.~.~.~ And alkaline earth metal or magnesium compound
105  DF  .~.~.~.~ And aluminum compound (e.g., clay, aluminum oxide, etc.)
106  DF  .~.~.~ Zirconium silicate
107  DF  .~.~.~.~ And aluminum compound (e.g., clay, aluminum oxide, etc.)
108  DF  .~.~ Magnesium compound containing
109  DF  .~.~.~ With organic material in starting mixture
110  DF  .~.~.~.~ And iron or chromium compound
111  DF  .~.~.~ And phosphorus compound
112  DF  .~.~.~ And iron compound
113  DF  .~.~.~.~ Dolomite containing
114  DF  .~.~.~.~ And chromium compound
115  DF  .~.~.~.~.~ Fused cast or fused material containing
116  DF  .~.~.~.~.~ Chemical binder containing
117  DF  .~.~.~ And chromium compound
118  DF  .~.~.~ And aluminum compound
119  DF  .~.~.~.~ Aluminum compound other than clay
120  DF  .~.~.~.~.~ Spinel or other aluminate
121  DF  .~.~.~ Less than 90 percent by weight magnesium compound
122  DF  .~.~.~ And silicon compound
123  DF  .~.~ Alkaline earth metal compound containing
124  DF  .~.~.~ Hydraulic cement containing
125  DF  .~.~.~ And aluminum compound
126  DF  .~.~ Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containing
127  DF  .~.~.~ Aluminum compound (e.g., clay, aluminium oxide, etc.)
128  DF  .~.~.~.~ And silicon compound other than clay
129  DF  .~.~.~.~.~ And silica-clay mixtures
130  DF  .~.~.~.~.~ And clay containing
131  DF  .~.~.~.~.~.~ Less than 40 percent by weight clay
132  DF  .~.~.~ Chromium compound containing
133  DF  .~.~ Silica containing
134  DF  .~ Titanate, zirconate, stannate, niobate, or tantalate or oxide of titanium, zirconium, tin, niobium, or tantalum containing (e.g., dielectrics, etc.)
135  DF  .~.~ Alkaline earth or magnesium containing
136  DF  .~.~.~ Titanate containing
137  DF  .~.~.~.~ Barium titanate
138  DF  .~.~.~.~.~ And divalent metal oxide other than alkaline earth oxide or magnesium oxide
139  DF  .~.~.~.~.~ And trivalent metal oxide
140  DF  .~ Elemental sulfur containing
141  DF  .~ Clay containing (e.g., porcelain, earthenware, etc.)
142  DF  .~.~ And phosphorus (e.g., bone china, etc.)
143  DF  .~.~ And flint or feldspar
144  DF  .~.~.~ Kaolin (e.g., ball clay, fire clay, etc.) containing
145  DF  .~.~ Clay pretreatment
146  DF  .~.~.~ Chemical pretreatment
147  DF  .~.~.~.~ Using alkaline compound treating agent
148  DF  .~.~.~.~ Using organic substance as treating agent
149  DF  .~.~.~ Water pretreatment
150  DF  .~.~.~ Heat pretreatment
151  DF  .~ Fluorine containing
152  DF  .~ Yttrium, lanthanide, actinide, or transactinide containing (i.e., atomic numbers 39 or 57-71 or 89+)
153  DF  .~ Aluminum compound containing
154  DF  .~ Silicon compound containing
155  DF  .~ Composed of waste material
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CROSS-REFERENCE ART COLLECTIONS PERTAINING TO OPTICAL GLASSES IN SUBCLASSES 13, 40, 41+, AND 53+
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900  DF  .~ Optical glass (e.g., silent on refractive index and/or Abbe number)
901  DF  .~.~ Having R.I. at least 1.8
902  DF  .~.~ Having Abbe number at least 70
903  DF  .~.~ Having refractive index less than 1.8 and Abbe number less than 70
904  DF  .~.~ Infrared transmitting or absorbing
905  DF  .~.~ Ultraviolet transmitting or absorbing
906  DF  .~.~ Thorium oxide containing