Patents by Inventor Stuart B. Fraser

Stuart B. Fraser 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).

  • Perfumed products
    Patent number: 5306707
    Abstract: The invention concerns perfuming and protecting against microbial spoilage products, which are not intended for human or animal ingestion and which comprise at least 25% of water and 0-60% of a surface active material, by incorporating therein a preservative perfume. Preservative perfumes consist for at least 30% by weight of perfume ingredients which need at least 3 inoculations for failure in the individual challenge test. Preferred effective perfumes themselves need at least 5 inoculations for failure in the perfume challenge test.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: April 26, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventors: John W. Burrell, Stuart B. Fraser, Neil Kilcullen, Alexander Martin, James B. Melville