Patents by Inventor Mark Christopher Richardson

Mark Christopher Richardson 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: 5717005
    Abstract: Chlorhexidine gluconate-containing adhesives have dispersed therein solid chlorhexidiene particles which will pass through a 125 .mu.m sieve and at least about 30% of the total volume of particles has a size of not less than 5 .mu.m. The adhesive may be a vinyl ether adhesive and may be coated upon a backing layer such as a hydrophilic polyurethane to produce products suitable for use as wound dressings, IV dressing or incise drapes. The chlorhexidine gluconate may be obtained as a freeze-dried solid and added directly, in suspension, to the adhesive mass without further milling.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: February 10, 1998
    Assignee: Smith & Nephew PLC
    Inventor: Mark Christopher Richardson