Hongwei Hsiao

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Morgantown, WV, US

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Patents Grantslast 30 patents

Information Patent Grant
Multimodal indicator safety device for ladder positioning
- Patent number 8,167,087
- Issue date May 1, 2012
- The United States of America as represented by the Secretary of the Departmen...
- Peter Simeonov
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

Information Patent Application
ELECTROADHESION DEVICE FOR IMPROVING EXTENSION LADDER STABILITY
- Publication number 20110315477
- Publication date Dec 29, 2011
- The Government of the United States of America as represented by the Secretar...
- Harsha Prahlad
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
CONVERTIBLE MULTIPURPOSE LADDER STABILIZERS
- Publication number 20100230208
- Publication date Sep 16, 2010
- Hongwei Hsiao
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
MULTIMODAL INDICATOR SAFETY DEVICE FOR LADDER POSITIONING
- Publication number 20100224444
- Publication date Sep 9, 2010
- Peter Simeonov
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS