Harold E. Siess

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Gaithersburg, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for protecting exposed surfaces
- Patent number 6,379,427
- Issue date Apr 30, 2002
- Harold E. Siess
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Method and apparatus for making and depositing compounds
- Patent number 5,858,476
- Issue date Jan 12, 1999
- Harold E. Siess
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method and apparatus for generating ions
- Patent number 5,780,862
- Issue date Jul 14, 1998
- Harold E. Siess
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for generation and implantation of ions
- Patent number 5,420,437
- Issue date May 30, 1995
- Harold E. Siess
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for protecting vehicles
- Publication number 20030007306
- Publication date Jan 9, 2003
- Harold Edward Siess
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
Method for the separation of a mixture of differing particulate types
- Publication number 20020195376
- Publication date Dec 26, 2002
- Harold Edward Siess
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Air conditioning and signaling apparatus
- Publication number 20020176809
- Publication date Nov 28, 2002
- Harold E. Siess
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
Protecting transmissive surfaces
- Publication number 20020159215
- Publication date Oct 31, 2002
- Harold Edward Siess
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...