Patents Examined by Edwin Coleman Micthell
  • Wood preservatives
    Patent number: 12557809
    Abstract: A wood preservative composition and method for preserving wood by contacting wood with said composition comprising a polyurethane polymer, non-aqueous solvents, and a wood preservative active.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: February 24, 2026
    Inventors: Selvanathan Arumugam, David A. Laganella, Randall W. Stephens