Patents by Inventor William Block

William Block 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).

  • Compositions, assemblies, and methods applied during or after a dental procedure to ameliorate fluid loss and/or promote healing, using a hydrophilic polymer sponge structure such as chistosan
    Publication number: 20060089584
    Abstract: Dental dressing assemblies are formed from hydrophilic polymer sponge structures, such as a densified chitosan biomaterial.
    Type: Application
    Filed: October 28, 2005
    Publication date: April 27, 2006
    Inventors: Staci McAdams, William Block, Simon McCarthy, Kenton Gregory
  • Hybrid metal oxide/organometallic conversion coating for ferrous metals
    Publication number: 20060014042
    Abstract: The ferrous metal chemical conversion coating is comprised of mixed oxides and organometallic compounds of aluminum and iron. A ferrous metal substrate is immersed for a period of time in a bath composition, at a temperature, at a pH, and at a concentration for each constituent of the bath composition, that will form a coating with the desired characteristics. The bath composition comprises water, aluminum salt, oxalic acid, and an oxidizer. The conversion coating is amorphous in nature and can be formed as thin as 1 micron with a coating weight in the range of about 40-250 milligrams per square foot. When sealed with an appropriate rust preventive material, the coating enhances corrosion resistance of the ferrous metal substrate. It is an effective absorbent base for paint finishes. When top coated with a lubricant, the conversion coating aids (a) assembly of parts, (b) break-in of sliding surfaces, and (c) anti-galling.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 19, 2006
    Inventors: William Block, Bryce Devine