Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 5904881 | Procedure for preparing a incandescent material and its use in hard mantles for gas lighting of public places The present invention relates to a incandescent material formed from the following mixture of oxides (in moles): 50 to 70% zirconium oxide ZrO2, 5 to 8% yttrium oxide Y2 O3, 13 to 20% magnesium oxide MgO, 4 to 10% lithium oxide Li | 05/18/1999 |
| 5837011 | Method for making metal oxide textiles for spectral emitters Several new and useful compositions of rare earth oxides and mixtures of rare earth oxides are made into strong flexible fibrous textiles and strands. By varying the mixtures of rare earth metal oxides that make up the textiles and strands, the emission s... | 11/17/1998 |
| 5686368 | Fibrous metal oxide textiles for spectral emitters Several new and useful compositions of rare earth oxides and mixtures of rare earth oxides are made into strong flexible fibrous textiles and strands. By varying the mixtures of rare earth metal oxides that make up the textiles and strands, the emission s... | 11/11/1997 |
| 5124286 | Incandescent mantles An improved incandescent mantle which is free of radioactive materials and stronger than mantles produced in the past. The present invention provides a mantle comprised of zirconia, yttria, erbia and ceria, which produces a resulting light output and colo... | 06/23/1992 |
| 4877553 | Gas mantle technology A gas mantle has an operating color temperature of about 2300K and consists essentially of from about one percent to ten percent by weight of ceria and from about ninety percent to ninety-nine percent by weight of erbia.... | 10/31/1989 |
| 4826426 | Thermophotovoltaic technology A high output, narrow band thermally energized radiation source comprises a rare earth oxide radiator member that has a cross-sectional dimension in the range of five to thirty micrometers, the rare earth oxide radiator member, when heated to about 1700°... | 05/02/1989 |
| 4764104 | Narrow band thermal emitter A high output, narrow band thermally energized radiation source comprises a rare earth oxide radiator member that has a cross-sectional dimension in the range of five to thirty micrometers, the rare earth oxide radiator member, when heated to about 1700°... | 08/16/1988 |
| 4604228 | Candoluminescent material and its preparation process Candoluminescent material constituted by a mixture of finely divided oxides brought into the form of a net identical to a textile. This mixture has the following molar compositions: 75 to 90% zirconia, 5 to 20% of yttrium oxide or calcium oxide and yttrium oxi... | 08/05/1986 |
| 4533317 | Yttrium oxide mantles for fuel-burning lanterns Incandescent mantles of improved strength and durability are provided for use with fuel-burning lanterns. The mantles are characterized by the use of a hydroxide mixture on the mantle sack of which the primary component is yttrium hydroxide together with ... | 08/06/1985 |
| 4532073 | Candoluminescent material and its preparation The invention relates to a candoluminescent material, its preparation process and its use as a gas lamp mantle. This condoluminescent material is constituted by a mixture of finely divided oxides brought into the form of a netting identical to a textile, ... | 07/30/1985 |
