Patents by Inventor Philemon Wang

Philemon Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scraping apparatus and method thereof
    Publication number: 20020121476
    Abstract: A mud/sediment scraping apparatus comprises a first scraping assembly including scraping members and a second scraping assembly including scraping members alternate with that of the first scraping assembly. A scraping method comprises activating scraping assemblies to move toward each other at a first phase of a cycle of a reciprocating motions thereof, move away from each other at a next second phase, and move toward each other at a next third phase in scraping mud/sediment settled on bottom of pond.
    Type: Application
    Filed: February 25, 2002
    Publication date: September 5, 2002
    Inventor: Philemon Wang