William J. Hartman

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Canby, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic spraying system for agriculture
- Patent number 10,583,448
- Issue date Mar 10, 2020
- Progressive Grower Technologies, Inc.
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Electrostatic spray module
- Patent number 6,227,466
- Issue date May 8, 2001
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Electrostatic spray module
- Patent number 6,138,922
- Issue date Oct 31, 2000
- Progressive Grower Technologies
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Electrostatic spray module
- Patent number 6,003,794
- Issue date Dec 21, 1999
- Progressive Grower Technologies, Inc.
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

Information Patent Application
ELECTROSTATIC SPRAYING SYSTEM FOR AGRICULTURE
- Publication number 20190118200
- Publication date Apr 25, 2019
- Progressive Grower Technologies, Inc.
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
ELECTROSTATIC SPRAYING SYSTEM FOR AGRICULTURE
- Publication number 20180361405
- Publication date Dec 20, 2018
- Progressive Grower Technologies, Inc.
- William J. Hartman
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...