PRETREATMENT OF MICROPROJECTILES PRIOR TO USING IN A PARTICLE GUN - Patent 0644945

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EP 0 644 945 A1

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(43)	Date of publication:
	29.03.1995 Bulletin 1995/13

(21)	Application number: 93904738.0

(22)	Date of filing: 29.01.1993

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International Patent Classification (IPC):

C12N 15/ 09^{( . )}
C12N 15/ 89^{( . )}

C12M 1/ 00^{( . )}

(86)	International application number:
	PCT/US1993/000817

(87)	International publication number:
	WO 1994/017195 (04.08.1994 Gazette 1994/18)

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

(71)	Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
	Des Moines Iowa 50309 (US)

(72)	Inventors:
	TOMES, Dwight Cumming, IA 50061 (US) ROSS, Margit West Des Moines, IA 50265 (US) BANGS, Leigh Carmel, IN 46032 (US)

(74)	Representative: Denmark, James
	Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD Yorkshire Leeds LS1 2SD Yorkshire (GB)

(54)	PRETREATMENT OF MICROPROJECTILES PRIOR TO USING IN A PARTICLE GUN