Stephen R Keyser

US Patent:

8105288, Jan 31, 2012

Filed:

Jan 9, 2009

Appl. No.:

12/319715

Inventors:

Stephen Richard Keyser - Fresno CA, US
Linda Miller, legal representative - Fresno CA, US

Assignee:

I-V Access Technology, Inc. - Fresno CA

International Classification:

A61M 5/178

US Classification:

6041641

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.

US Patent:

8591469, Nov 26, 2013

Filed:

Dec 20, 2011

Appl. No.:

13/331910

Inventors:

Stephen Richard Keyser - Fresno CA, US
Linda Miller - Fresno CA, US

Assignee:

I-V Access Technology - Fresno CA

International Classification:

A61M 5/178

US Classification:

6041641

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.

US Patent:

20130204226, Aug 8, 2013

Filed:

Feb 5, 2013

Appl. No.:

13/759643

Inventors:

Stephen Richard Keyser - Fresno CA, US

Assignee:

I-V Access Technology, Inc. - Fresno CA

International Classification:

A61M 39/26
A61M 25/00

US Classification:

604506, 60416704, 6041641, 137511, 137 2

Abstract:

This invention provides catheter assemblies and methods for insertion of a catheter into a vessel. The assemblies include a resilient valve in the hub of the catheter that can be opened by pressure from a male luer fitting. The methods include piercing a vessel with the needle and catheter of the assembly, retraction of the needle component thus closing the resilient valve. Finally the catheter can be accessed by applying a male luer fitting to the catheter hub and a shoulder of the resilient valve.

US Patent:

20210285166, Sep 16, 2021

Filed:

Jun 1, 2021

Appl. No.:

17/335488

Inventors:

- Boulder CO, US
Stephen Keyser - Longmont CO, US
Steven L. Sawyer - Huntington Beach CA, US
Richard R. Runkles - Windsor CO, US

Assignee:

Brock USA, LLC - Boulder CO

International Classification:

E01C 13/08
D06N 7/00

Abstract:

An artificial turf system includes a turf assembly having a turf backing and stands of artificial grass blades extending from the turf backing to form an artificial turf layer. Infill material is placed in between the blades of artificial grass and on top of the turf backing. The infill material has a composition of sand in an amount within the range of from about 80 to about 98 percent of the infill by dry bulk weight, and organic particles in an amount within the range of from about 2 to about 20 percent of the infill by dry bulk weight.

US Patent:

20190203425, Jul 4, 2019

Filed:

Mar 7, 2019

Appl. No.:

16/295835

Inventors:

- Boulder CO, US
Stephen Keyser - Longmont CO, US
Steven L. Sawyer - Huntington Beach CA, US
Richard R. Runkles - Windsor CO, US

Assignee:

Brock USA, LLC - Boulder CO

International Classification:

E01C 13/08
D06N 7/00

Abstract:

An artificial turf system includes a turf assembly having a turf backing and stands of artificial grass blades extending from the turf backing to form an artificial turf layer. Infill material is placed in between the blades of artificial grass and on top of the turf backing. The infill material has a composition of sand in an amount within the range of from about 80 to about 98 percent of the infill by dry bulk weight, and organic particles in an amount within the range of from about 2 to about 20 percent of the infill by dry bulk weight.