Patents by Inventor Lacy D. Ward

Lacy D. Ward 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).

  • Patent number: 5087273
    Abstract: An air freshening device used in conjunction with an air circulation system of a business or residential building for impregnating the air with an aromatic scent. The device comprises a rectangular envelope made out of an air permeable synthetic mesh containing a plurality of aromatic beads. The envelope has a fastener at one corner. It is affixed to the internal conduit of the air circulation system, preferably to the main air filter for the system. As air passes through the air permeable envelope, the aromatic beads volatize, saturating the air with a fragrant scent. The air is then transferred throughout the building via the normal conduit or duct system.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: February 11, 1992
    Assignee: Ward Products, Inc.
    Inventor: Lacy D. Ward