Patents by Inventor Mark Holtman

Mark Holtman 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).

  • ROOF SYSTEM WITH ADHERED CONSTRUCTION BOARDS
    Publication number: 20260234935
    Abstract: A flat or low-sloped roof system including (i) a roof deck; (ii) a first layer of construction boards secured directly or indirectly to the roof deck; (iii) a second layer of construction boards adhered to the first layer of construction boards via a double-sided adhesive sheet that includes a first layer of pressure-sensitive adhesive and a second layer of pressure-sensitive adhesive sandwiching a foamed carrier layer; and (iv) a roofing membrane forming a waterproof protective layer over the second layer of construction boards. Other configurations and a method of installing construction boards on a roof are also provided.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 13, 2026
    Inventors: Linyong SONG, Jiansheng TANG, Zengquan QIN, Mark HOLTMAN, Joseph J. KALWARA, Joseph R. CARR
  • Process to yield foam construction boards with low surface irregularities
    Patent number: 12358190
    Abstract: A method for producing a foam board laminate having low surface irregularities, the method comprising (i) preparing a continuous foam laminate; (ii) cutting the foam laminate to a desired length; (iii) placing the foam laminate of desired length into restriction to restrict further expansion of the foam laminate in the thickness of the foam laminate.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: July 15, 2025
    Assignee: Holcim Technology Ltd
    Inventors: John B. Letts, Chunhua Yao, Mark Holtman