Mark K. Hemphill

7 Patents

• US125588112026

  Method and Apparatus for Making a Gypsum Board

  KNAUF GIPS KG

  0 cites
• US124483342025

  High Temperature Sag Resistant Gypsum Panel

  KNAUF GIPS KG

  0 cites
• US124157652025

  Board with Fiber-reinforced Dense Layer

  Knauf Gips KG

  0 cites
• US119930542024

  Method of Preparing Gypsum Wallboard from High Salt Gypsum, and Related Product

  United States Gypsum Company

  0 cites
• US118913362024

  Gypsum Board Containing High Absorption Paper and Related Methods

  United States Gypsum Company

  0 cites
• US118343742023

  Accelerator Comprising Starch, and Related Board, Slurries, and Methods

  UNITED STATES GYPSUM COMPANY

  0 cites
• US118343752023

  Fire Resistant Gypsum Board and Related Methods

  United States Gypsum Company

  0 cites