Patents by Inventor Wu Lan Wang

Wu Lan 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).

  • Chemical compositions and process
    Patent number: 4009315
    Abstract: Leather like compositions are produced by needling a fleece into a foam, compressing resulting product, depositing an elastomer into the compressed product, again compressing and optionally coating.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: February 22, 1977
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Lawrence W. Healy, Wu Lan Wang, Tsu-Huai Wang
  • Diffusion method for depositing microporous film
    Patent number: 4006052
    Abstract: Describes procedure for deposition of microporous grain layer in and on a substrate for the production of leather replacement products in which the deposition liquid diffuses upwardly through the substrate to deposit the polymer from a solution thereof which has been laminated and coated on the top surface of the substrate.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: February 1, 1977
    Assignee: Tenneco Chemicals, Inc.
    Inventor: Wu Lan Wang