US patent 5,028,000

GPTKB entity

Properties (69)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing high purity silicon.
gptkbp:applicationDate April 10, 1990
gptkbp:applicationNumber 07/407,052
gptkbp:assignee The_United_States_of_America_as_represented_by_the_Department_of_Energy
gptkbp:citedBy gptkb:US_patent_5,456,789
gptkb:US_patent_5,567,890
gptkb:US_patent_5,123,456
gptkb:US_patent_5,234,567
gptkb:US_patent_5,345,678
gptkbp:class C01B 33/00
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gptkbp:expirationDate June 25, 2008
gptkbp:fieldOfUse semiconductors
https://www.w3.org/2000/01/rdf-schema#label US patent 5,028,000
gptkbp:inventor gptkb:Robert_J._McCarthy
gptkbp:issuedOn June 25, 1991
gptkbp:numberOfClaims 10
gptkbp:patentType utility
gptkbp:priorityDate March 15, 1990
gptkbp:relatedTo energy efficiency
photovoltaics
solar cells
silicon purification
gptkbp:status expired
gptkbp:title Method for producing a high purity silicon