David H. Hardy

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New Richmond, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Precisely shaped abrasive composite
- Patent number 5,714,259
- Issue date Feb 3, 1998
- Minnesota Mining and Manufacturing Company
- Gary L. Holmes
- B24 - GRINDING POLISHING
Information Patent Grant
Method of making a coated abrasive article comprising precisely sha...
- Patent number 5,690,705
- Issue date Nov 25, 1997
- Minnesota Mining and Manufacturing Company
- Gary L. Holmes
- B24 - GRINDING POLISHING
Information Patent Grant
Precisely shaped particles and method of making the same
- Patent number 5,628,952
- Issue date May 13, 1997
- Minnesota Mining and Manufacturing Company
- Gary L. Holmes
- B24 - GRINDING POLISHING
Information Patent Grant
Precisely shaped particles and method of making the same
- Patent number 5,549,962
- Issue date Aug 27, 1996
- Minnesota Mining and Manufacturing Company
- Gary L. Holmes
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive articles comprising precisely shaped particles
- Patent number 5,500,273
- Issue date Mar 19, 1996
- Minnesota Mining and Manufacturing Company
- Gary L. Holmes
- B24 - GRINDING POLISHING
Information Patent Grant
Method of making an abrasive article
- Patent number 5,435,816
- Issue date Jul 25, 1995
- Minnesota Mining and Manufacturing Company
- Kathryn M. Spurgeon
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL