Ribbon crystal pulling furnace afterheater with at least one opening

United States of America Patent

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Dec 11, 2012
Grant Date
Dec 18, 2008
app pub date
Jun 13, 2008
filing date
Jun 14, 2007

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Expired

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Abstract

A ribbon crystal pulling furnace has an interior for enclosing at least a portion of one or more ribbon crystals, and an afterheater positioned within the interior. The afterheater has at least one wall with one or more openings that facilitate control of the temperature profile within the furnace.

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Patent Owner	Address
EVERGREEN SOLAR INC	259 CEDAR HILL STREET MARLBOROUGH MA 01752-3004

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Inventor Name	Address	# of filed Patents	Total Citations
Harvey, David	Westford, US	76	1079
Huang, Weidong	Acton, US	74	496
Reitsma, Scott	Shrewsbury, US	16	8

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Ribbon crystal pulling furnace afterheater with at least one opening

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12138799

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PATENT NO	8328932
APP PUB NO	20080308034A1
SERIAL NO	12138799
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
December 11, 2012	US,8328932,B2 US8328932B2	GRANTED PATENT AS SECOND PUBLICATION
December 18, 2008	US,20080308034,A1 US20080308034A1	FIRST PUBLISHED PATENT APPLICATION

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12138799

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