Patents by Inventor Daniel Sarpong

Daniel Sarpong 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).

  • Azlactone-functional hydrophilic coatings and hydrogels
    Patent number: 7101621
    Abstract: Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: September 5, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, James I. Hembre, Jerald K. Rasmussen, Daniel Sarpong
  • Azlactone-functional hydrophilic coatings and hydrogels
    Publication number: 20050003198
    Abstract: Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 6, 2005
    Inventors: Louis Haddad, James Hembre, Jerald Rasmussen, Daniel Sarpong
  • Azlactone-functional hydrophilic coatings and hydrogels
    Patent number: 6794458
    Abstract: Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: September 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, James I. Hembre, Jerald K. Rasmussen, Daniel Sarpong
  • Azlactone-functional hydrophilic coatings and hydrogels
    Publication number: 20030049435
    Abstract: Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed.
    Type: Application
    Filed: May 18, 2001
    Publication date: March 13, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, James I. Hembre, Jerald K. Rasmussen, Daniel Sarpong