David W. Leonard

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Coating device and method using pick-and-place devices having equal...
- Patent number 7,311,780
- Issue date Dec 25, 2007
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Wet coating improvement station
- Patent number 7,279,042
- Issue date Oct 9, 2007
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Method for coating a limited length substrate using rotating suppor...
- Patent number 6,899,922
- Issue date May 31, 2005
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Coating device and method using pick-and-place devices having equal...
- Patent number 6,878,408
- Issue date Apr 12, 2005
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Method for improving the uniformity of a wet coating on a substrate...
- Patent number 6,737,113
- Issue date May 18, 2004
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

Information Patent Application
Coating device and method using pick-and-place devices having equal...
- Publication number 20050139154
- Publication date Jun 30, 2005
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Method for improving the uniformity of a wet coating on a substrate...
- Publication number 20040187773
- Publication date Sep 30, 2004
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Sheet coater
- Publication number 20030003238
- Publication date Jan 2, 2003
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Coating device and method
- Publication number 20020132049
- Publication date Sep 19, 2002
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Coating device and method using pick-and-place devices having equal...
- Publication number 20020090457
- Publication date Jul 11, 2002
- 3M Innovative Properties Company
- William K. Leonard
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...