The following Merrell Bros. products and services are protected by patents in the United States. This webpage is provided to satisfy the virtual patent marking provisions of various jurisdictions including the virtual patent marking provisions of the America Invents Act and to provide notice under 35 U.S.C. § 287(a). The following list of products and services may not be all inclusive, and other products and services not listed here may be protected by one or more patents in the United States. Additional patents may be pending in the United States.
| Product or Method | U.S. Patent No./Serial No. |
| Systems, methods, and apparatus for converting biosolids to class A fertilizer | 9,751,813 |
| Systems, methods and apparatus for converting biosolids to class A fertilizer | 10,259,755 |
| Systems, Methods, and Apparatus for Converting Biosolids to an Enhanced Cylindrical Class A Fertilizer
*Patent Pending* |
63/310,628 |
| Systems And Methods For Mechanically Removing Liquid From Material
*Patent Pending* |
63/285,508 |
| Double Drum Systems and Processes for Converting Biosolids to Fertilizer
*Patent Pending* |
17/220,994 |