Patents by Inventor Alan J. Bartholomew

Alan J. Bartholomew 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).

  • Cellulosic fibre
    Patent number: 5634914
    Abstract: Viscose filaments, preferably in staple fibre form, which have a decitex of less than 5.0 and a multi-limbed cross-section, the limbs having a length-to-width aspect ratio of at least 2:1. Examples of multi-limbed cross-sectional shapes are Y--, X--, H-- and T-- shapes. The fibre can be formed into woven, non-woven or knitted fabrics, and is especially useful for absorbent products.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: June 3, 1997
    Assignee: Courtaulds PLC
    Inventors: Andrew G. Wilkes, Alan J. Bartholomew
  • Process of making viscose staple fibers
    Patent number: 5458835
    Abstract: Viscose filaments, preferably in staple fibre form, which have a decitex of less than 5.0 and a multi-limbed cross-section, the limbs having a length-to-width aspect ratio of at least 2:1. Examples of multi-limbed cross-sectional shapes are Y-, X-, H- and T-shapes. The fibre can be formed into woven, non-woven or knitted fabrics, and is especially useful for absorbent products.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: October 17, 1995
    Assignee: Courtaulds PLC
    Inventors: Andrew G. Wilkes, Alan J. Bartholomew
  • Process of improving at least one property of viscose filaments
    Patent number: 5443776
    Abstract: The absorbency of regenerated viscose filaments is improved by overfeeding a continuous tow of partially regenerated filaments onto a moving foraminous support so that regeneration occurs prior to and after the filament tow is overfed onto the moving support.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: August 22, 1995
    Assignee: Courtaulds plc
    Inventors: Alan J. Bartholomew, Paul L. Probert, Michael Richardson, Andrew G. Wilkes