Patents by Inventor M. Parke Byron

M. Parke Byron 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: 6261271
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: July 17, 2001
    Assignee: Becton Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron
  • Patent number: 5707366
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 13, 1998
    Assignee: Becton Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron
  • Patent number: 5451424
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: September 19, 1995
    Assignee: Becton Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron
  • Patent number: 5165952
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: November 24, 1992
    Assignee: Becton, Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron
  • Patent number: 5013306
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: May 7, 1991
    Assignee: Becton, Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron
  • Patent number: 4999210
    Abstract: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine, an antibiotic, or an antithrombogenic agent permeated into the surface or it may be a polymeric surface layer having bulk distributed chlorhexidine laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine. The article may then be laminated by dipping into a solution of chlorhexidine and a substantially hydrophilic polymer in a solvent.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: March 12, 1991
    Assignee: Becton, Dickinson and Company
    Inventors: Donald D. Solomon, M. Parke Byron