Richard D.W. Hahn

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Diamond Bar, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ornamental plaster crown molding
- Patent number 6,228,507
- Issue date May 8, 2001
- Richard D. W. Hahn
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Baseboard molding with adaptive and accommodating surfaces
- Publication number 20050260376
- Publication date Nov 24, 2005
- Richard Duk Wong Hahn
- E04 - BUILDING
Information Patent Application
Molding system for improved appearance with simplified installation
- Publication number 20050210784
- Publication date Sep 29, 2005
- Richard Duk Wong Hahn
- E04 - BUILDING
Information Patent Application
Shipping cage and vertical cargo
- Publication number 20030038052
- Publication date Feb 27, 2003
- Richard D.W. Hahn
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Combination toolbox, workbench, dispensing crib and stool
- Publication number 20030015851
- Publication date Jan 23, 2003
- Richard D.W. Hahn
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
Plaster crown molding system for indirect lighting
- Publication number 20030014931
- Publication date Jan 23, 2003
- Richard D.W. Hahn
- E04 - BUILDING