Properties (54)
Predicate | Object |
---|---|
gptkbp:instanceOf |
patent
|
gptkbp:abstract |
A method for producing high purity silicon.
|
gptkbp:applicationNumber |
07/392,174
|
gptkbp:applicationType |
non-provisional
|
gptkbp:assignee |
The_United_States_of_America_as_represented_by_the_Department_of_Energy
|
gptkbp:citedBy |
gptkb:US_patent_5,123,456
|
gptkbp:examiner |
gptkb:John_Doe
|
gptkbp:expirationDate |
August 13, 2008
|
gptkbp:fieldOfUse |
semiconductors
|
gptkbp:filingDate |
July 3, 1989
|
https://www.w3.org/2000/01/rdf-schema#label |
US patent 5,039,000
|
gptkbp:internationalClassification |
C30B 29/00
|
gptkbp:inventor |
gptkb:Robert_J._McCarthy
Los Alamos |
gptkbp:inventorCountry |
gptkb:USA
|
gptkbp:issuedOn |
August 13, 1991
|
gptkbp:legalStatus |
active
|
gptkbp:maintenanceFee |
paid
|
gptkbp:numberOfClaims |
20
|
gptkbp:patentAbstract |
Describes a method for producing high purity silicon.
advancements in silicon purification. |
gptkbp:patentAssignee |
gptkb:Department_of_Energy
|
gptkbp:patentCitation |
gptkb:US_patent_4,123,456
high purity silicon production. high purity silicon. semiconductor devices. cited by 10 patents. improved semiconductor performance. high purity materials. silicon purification methods. silicon technology. |
gptkbp:patentClassification |
chemical engineering
|
gptkbp:patentDescription |
A detailed description of the method for silicon production.
|
gptkbp:patentExpiration |
August 13, 2008
|
gptkbp:patentFamily |
US_patent_family
|
gptkbp:patentField |
materials science
electronics semiconductor manufacturing silicon technology |
gptkbp:patentFilingDate |
July 3, 1989
August 13, 1991 |
gptkbp:patentInventor |
gptkb:Robert_J._McCarthy
|
gptkbp:patentNumber |
5,039,000
US_patent |
gptkbp:patentOwner |
gptkb:Department_of_Energy
|
gptkbp:patentStatus |
maintenance fee paid
|
gptkbp:patentType |
utility
07/392,174 |
gptkbp:priorityDate |
February 28, 1989
|
gptkbp:relatedPatent |
gptkb:US_patent_5,123,456
|
gptkbp:relatedTo |
silicon purification
|
gptkbp:status |
granted
|
gptkbp:title |
Method for producing a high purity silicon
|
gptkbp:USClassification |
423/1.1
|