Donald C.L. Tang

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Potomac, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Double seal self-venting container
- Patent number 7,055,712
- Issue date Jun 6, 2006
- Donald C. L. Tang
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Single piece container and method for making
- Patent number 5,685,478
- Issue date Nov 11, 1997
- Donald Tang
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
Double seal self-venting container
- Publication number 20050269319
- Publication date Dec 8, 2005
- Donald C.L. Tang
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL