Robert Hummell

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Yorktown, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for filtering voltage for an electrostatic pre...
- Patent number 6,611,440
- Issue date Aug 26, 2003
- BHA Group Holdings, Inc.
- David F. Johnston
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Method and apparatus for controlling an evaporative gas conditionin...
- Patent number 5,950,441
- Issue date Sep 14, 1999
- BHA Group Holdings, Inc.
- Anand Mahableshwarkar
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for controlling an evaporative gas conditioning system
- Patent number 5,890,369
- Issue date Apr 6, 1999
- BHA Group Holdings, Inc.
- Anand Mahableshwarkar
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for filtering voltage for an electrostatic pre...
- Publication number 20040037096
- Publication date Feb 26, 2004
- David F. Johnston
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC