Patents by Inventor Don Ervin

Don Ervin 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).

  • Thick-caliper laminated paperboard and methods for making the same
    Patent number: 11773540
    Abstract: Disclosed are methods for manufacturing laminated paperboard materials that are alternatives to plastic, wood, and wood-like materials, such as plywood, medium-density fiberboard (MDF), and oriented strand board (OSB). Also disclosed are structures formed from thick-caliper laminated paperboard materials.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 3, 2023
    Assignee: CARAUSTAR INDUSTRIAL AND CONSUMER PRODUCTS GROUP, INC.
    Inventors: Josh Wolfenbarger, Don Ervin
  • Thick-caliper laminated paperboard and methods for making the same
    Patent number: 11078629
    Abstract: Methods of making laminated paper sheets include winding paper around a flat-sided mandrel to form a flat-sided convolute tube and cutting from the flat-sided convolute tube one or more laminated paper sheets. The laminated paper sheets are alternatives to plastic, wood, and wood-like materials, such as plywood, medium-density fiberboard (MDF), and oriented strand board (OSB).
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: August 3, 2021
    Assignee: Caraustar Industrial and Consumer Products Group, Inc.
    Inventors: Josh Wolfenbarger, Don Ervin