Transparent microspheres

United States of America Patent

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Oct 8, 2002
Grant Date
Jan 17, 2002
app pub date
Mar 30, 2001
filing date
Jul 27, 1999

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Abstract

Transparent solid microspheres that contain titania plus alumina, zirconia, and/or silica in a total content of at least about 75% by weight, based on the total weight of the solid microspheres, wherein the total content of alumina, zirconia, and titania is greater than the content of silica.

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Patent Owner(s)

Patent Owner	Address
3M INNOVATIVE PROPERTIES COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bailey, John E	Shorewood, WI	6	226
Budd, Kenton D	Woodbury, MN	83	1340
Kasai, Toshihiro	Sagamihara, JP	91	940
Roscoe, Stephen B	St. Paul, MN	50	360
Yokoyama, Chikafumi	Kanagawa, JP	27	520

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Transparent microspheres

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09822669

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PATENT NO	6461988
APP PUB NO	20020006510A1
SERIAL NO	09822669
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 08, 2002	US,6461988,B2 US6461988B2	GRANTED PATENT AS SECOND PUBLICATION
January 17, 2002	US,20020006510,A1 US20020006510A1	FIRST PUBLISHED PATENT APPLICATION

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09822669

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