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Saint Paul, MN, United States of America

Douglas S Spencer

USPTO Granted Patents = 4

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 182(Granted Patents)

Location History:

Ramsey, MN (US) (1994)
Saint Paul, MN (US) (1988 - 2001)

Company Filing History:

Minnesota Mining and Manufacturing Company

1 out of 14,076

3m Innovative Properties Company

Years Active: 1988-2001

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6207246 - Nonwoven abrasive material roll (2001-03-27),

2. 5551961 - Abrasive articles and methods of making same (1996-09-03),

3. 5368618 - Method of making a coated abrasive article (1994-11-29),

4. 4773920 - Coated abrasive suitable for use as a lapping material (1988-09-27),

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