Patents by Inventor Michael David Lawrence

Michael David Lawrence 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).

  • Publication number: 20020198730
    Abstract: A method for recovering carpet comprising polymeric fibers. A seller, i.e. retailer, manufacturer or distributor installs a carpet at a consumer location and establishes and maintains a database of installed carpet information comprising carpet type, installation date and consumer identification data. The useful lifetime of the installed carpet is estimated, and the seller contacts the consumer within a determined period of time of the end of the estimated useful lifetime of the carpet. The seller then preferably provides the consumer with an incentive to replace the carpet, such as a credit towards the purchase of a replacement carpet from the seller. The seller then collects the used carpet and sorts the collected carpet according to polymeric fiber type. At least one type of polymeric fiber is converted into a recovered polymer composition, such as by depolymerizing it into its monomeric components and then repolymerizing the monomeric components to form a recovered polymer composition.
    Type: Application
    Filed: June 25, 2001
    Publication date: December 26, 2002
    Inventors: Michael Robert Costello, Michael David Lawrence, Truc Nguyen Brown, Edward Aloysius Duffy, Andres Camacho, David Franklin Blackwood