Patents by Inventor Niels L. Lindquist

Niels L. Lindquist 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).

  • Sunscreening composition comprising natural products of a marine hydroid and derivatives thereof
    Patent number: 6084118
    Abstract: The invention relates to novel UVB/UVA-absorbing chromophores that are present in the natural products of a marine hydroid, and derivatives thereof, useful as sunscreening agents. Furthermore, the present invention relates to methods for protecting skin from the damaging effects of solar ultraviolet radiation. This method comprises topically applying to the skin an effective coating of a sunscreen composition of the present invention. Additional embodiments of the invention use these natural UV-absorbing compounds, or derivative thereof, as additives as a means of providing UV-protective plastics, paints, and waxes.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: July 4, 2000
    Inventor: Niels L. Lindquist
  • Antioxidant compositions
    Patent number: 5980920
    Abstract: Disclosed herein is an antioxidant composition suitable for topical application to skin to provide protection from reactive oxygen species. The composition includes an effective amount of at least one compound selected from the group consisting of an antioxidant compound of formula I and an antioxidant compound of formula II. The specific chemical structures of formula I and formula II compounds are described herein.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: November 9, 1999
    Inventors: Niels L. Lindquist, George Loo
  • Sunscreening compositions comprising natural products of a marine hydroid, and derivative thereof
    Patent number: 5905158
    Abstract: The invention relates to novel UVB/UVA-absorbing chromophores that are present in the natural products of a marine hydroid, and derivatives thereof, useful as sunscreening agents. Furthermore, the present invention relates to methods for protecting skin from the damaging effects of solar ultraviolet radiation. This method comprises topically applying to the skin an effective coating of a sunscreen composition of the present invention. Additional embodiments of the invention use these natural UV-absorbing compounds, or derivative thereof, as additives as a means of providing UV-protective plastics, paints, and waxes.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 18, 1999
    Inventor: Niels L. Lindquist
  • Sunscreening compositions comprising natural products of a marine hydroid, and derivatives thereof
    Patent number: 5705146
    Abstract: The invention relates to novel UVB/UVA-absorbing chromophores that are present in the natural products of a marine hydroid, and derivatives thereof, useful as sunscreening agents. Furthermore, the present invention relates to methods for protecting skin from the damaging effects of solar ultraviolet radiation. This method comprises topically applying to the skin an effective coating of a sunscreen composition of the present invention. Additional embodiments of the invention use these natural UV-absorbing compounds, or derivative thereof, as additives as a means of providing UV-protective plastics, paints, and waxes.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: January 6, 1998
    Inventor: Niels L. Lindquist