PROCESS OF MAKING NIOBIUM OXIDE - Patent 0591459

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EP 0 591 459 A1

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(43)	Date of publication:
	13.04.1994 Bulletin 1994/15

(21)	Application number: 92915641.0

(22)	Date of filing: 26.06.1992

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International Patent Classification (IPC):

C01B 6/ 24^{( . )}
C01B 13/ 32^{( . )}
C01B 33/ 113^{( . )}
C01G 33/ 00^{( . )}

C01B 13/ 14^{( . )}
C01B 21/ 06^{( . )}
C01G 31/ 02^{( . )}
C01G 35/ 00^{( . )}

(86)	International application number:
	PCT/US1992/005325

(87)	International publication number:
	WO 1993/000292 (07.01.1993 Gazette 1993/02)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU NL SE

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Priority:

27.06.1991 US 19910721886

(71)	Applicant: TELEDYNE INDUSTRIES, INC.
	Albany,OR 87321 (US)

(72)	Inventors:
	SOMMERS, James, A. Albany, OR 97321 (US) PERKINS, Verlin, Q. Albany, OR 97321 (US)

(74)	Representative: Watts, Peter Graham, et al
	Anthony Cundy & Co., 1623 Warwick Road Knowle, Solihull, West Midlands B93 9LF Knowle, Solihull, West Midlands B93 9LF (GB)

(54)	PROCESS OF MAKING NIOBIUM OXIDE