Patents by Inventor Stephen Richard Keyser

Stephen Richard Keyser 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).

  • Intravenous catheter with pressure activated valve
    Patent number: 10052474
    Abstract: The anti-back-flow devices and methods prevent fluid from leaking proximally from a catheter, but allow ready access to the catheter using any male luer device. The devices include proximal surfaces that urge open a valve in response to force from a male luer tip. The valves are associated a female luer hub and adapted to function with standard and typical non-standard male luer fittings.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 21, 2018
    Assignee: I-V Access Technoiogy, Inc.
    Inventors: Stephen Richard Keyser, Jessie Delgado, Theodore J. Mosler
  • Apparatus for peripheral vascular access
    Patent number: 9775973
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: October 3, 2017
    Assignee: I-V Access Technology, Inc.
    Inventors: Stephen Richard Keyser, James Edgerly Miller, III
  • Intravenous Catheter with Pressure Activated Valve
    Publication number: 20150265827
    Abstract: The anti-back-flow devices and methods prevent fluid from leaking proximally from a catheter, but allow ready access to the catheter using any male luer device. The devices include proximal surfaces that urge open a valve in response to force from a male luer tip. The valves are associated a female luer hub and adapted to function with standard and typical non-standard male luer fittings.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Stephen Richard Keyser, Jessie Delgado, Theodore J. Mosler
  • Apparatus for Peripheral Vascular Access
    Publication number: 20140058357
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 27, 2014
    Applicant: I-V Access Technology, Inc.
    Inventors: Stephen Richard Keyser, James Edgerly Miller, III
  • Apparatus for peripheral vascular access
    Patent number: 8591469
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 26, 2013
    Assignee: I-V Access Technology
    Inventors: Stephen Richard Keyser, Linda Miller
  • Apparatus for Peripheral Vascular Access
    Publication number: 20120150118
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 14, 2012
    Applicant: I-V Access Technology, Inc.
    Inventors: Stephen Richard Keyser, James Edgerly Miller, III, Linda Miller
  • Apparatus for peripheral vascular access
    Patent number: 8105288
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: January 31, 2012
    Assignee: I-V Access Technology, Inc.
    Inventors: Stephen Richard Keyser, James Edgerly Miller, III, Linda Miller, legal representative
  • Apparatus for peripheral vascular access
    Publication number: 20090209912
    Abstract: This invention provides devices and methods for insertion of a catheter into a vessel. The devices include coaxial slidably mounted needle, dilator and catheter components. The methods include piercing a vessel with the needle component, dilating the pierced hole with the dilator component, retraction of the needle component, insertion of the catheter and withdrawal of the dilator.
    Type: Application
    Filed: January 9, 2009
    Publication date: August 20, 2009
    Applicant: I-V Access Technology, Inc.
    Inventors: Stephen Richard Keyser, James Edgerly Miller, III, Linda Miller