Patents by Inventor Will Aitken

Will Aitken 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).

  • Freeze-dried composite materials
    Publication number: 20010045177
    Abstract: The invention provides a sterile freeze-dried sponge, wherein at least 80% by weight of the sponge consists of collagen and oxidized regenerated cellulose in the weight ratio 60:40 to 40:60, wherein the sponge has a dry tensile strength of more than 3N and/or a wet tensile strength of more than 1 N. Preferably, the collagen has a degree of denaturation less than 20% and the sponge is substantially free of chemical cross-links.
    Type: Application
    Filed: February 27, 2001
    Publication date: November 29, 2001
    Inventors: Wil Harvey, Peter Van Leeuwen, Tom Hyland, Will Aitken
  • Freeze-dried composite materials and processes for the production thereof
    Patent number: 6309454
    Abstract: The invention provides a sterile freeze-dried sponge, wherein at least 80% by weight of the sponge consists of collagen and oxidized regenerated cellulose in the weight ratio 60:40 to 40:60, wherein the sponge has a dry tensile strength of more than 3N and/or a wet tensile strength of more than 1 N. Preferably, the collagen has a degree of denaturation less than 20% and the sponge is substantially free of chemical cross-links. The invention also provides methods for the manufacture of sponges according to the invention.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 30, 2001
    Assignee: Johnson & Johnson Medical Limited
    Inventors: Wil Harvey, Peter Van Leeuwen, Tom Hyland, Will Aitken