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US Patent 8142891 Dish-shaped abrasive particles with a recessed surface

Patent 8142891 was granted and assigned to 3M on March, 2012 by the United States Patent and Trademark Office.

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US Patent 12129422 Abrasive articles and methods of forming same
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US Patent 12122017 Abrasive particles having particular shapes and methods of forming such particles
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US Patent 12122953 Abrasive article including shaped abrasive particles
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US Patent 12084611 Fixed abrasive articles and methods of forming same
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US Patent 11959009 Abrasive particles and methods of forming same
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US Patent 11926781 Shaped abrasive particle including dopant material and method of forming same
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US Patent 11926780 Shaped abrasive particles and method of forming same
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US Patent 11926019 Abrasive articles and methods of forming same
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US Patent 11891559 Abrasive article including shaped abrasive particles
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US Patent 11879087 Abrasive article including shaped abrasive particles
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Patent abstract

Abrasive particles comprising dish-shaped abrasive particles each having a sidewall; each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a thickness, t; and wherein either the first face or the second face is recessed or concave.

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US Patent 11767454 Production tool to make abrasive particles with grooves
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Patent Inventor Names
Dwight D. Erickson0
John D. Haas0
John T. Boden0
Negus B. Adefris0
Scott R. Culler0
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US Patent 08142891 Dish-shaped abrasive particles with a recessed surface US Patent 8142891 Dish-shaped abrasive particles with a recessed surface

Infobox
Patent Number
081428910
Patent Number
81428910
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Infobox
Is a
Patent
Patent
0
Current Assignee
3M
3M
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
081428910
Date of Patent
March 27, 2012
0
Patent Application Number
123369610
Date Filed
December 17, 2008
0
Patent Primary Examiner
‌
Hoa (Holly) Le
0
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created this topic on 14 Dec, 2021
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Infobox (+8 properties)
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 US Patent 08142891 Dish-shaped abrasive particles with a recessed surface

Infobox
Is a
Patent
Patent
Current assignee
3M
3M
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
08142891
Date of patent
March 27, 2012
Patent application number
12336961
Date Filed
December 17, 2008
Patent primary examiner
‌
Hoa (Holly) Le

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