Patents by Inventor Stephen R. Ash

Stephen R. Ash 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: 11906260
    Abstract: The device of the present disclosure is a weapon. The weapon having a CO2 powered projectile which is fired from the weapon, used principally for self-defense. The projectile is generally rocket shaped wherein the front end of the rocket can be formed by a rounded shape of a front of a CO2 cylinder. The impact of the rocket projectile on a human could cause some pain, depending upon exactly what part of the body it hits. The impact could also cause some loss of balance to a human, due to the impact.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: February 20, 2024
    Inventor: Stephen R. Ash
  • Publication number: 20230364380
    Abstract: This disclosure generally relates to catheters, methods of enhancing the patency of an intravascular catheter and compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Disclosed compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A representative lock solution includes about 10% sodium citrate and about 1.5% benzyl alcohol. The solution has a density approximating the density of blood for retention of the solution in a catheter during the lock period.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 16, 2023
    Inventor: Stephen R. ASH
  • Patent number: 11744983
    Abstract: This disclosure generally relates to catheters, methods of enhancing the patency of an intravascular catheter and compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Disclosed compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A representative lock solution includes about 10% sodium citrate and about 1.5% benzyl alcohol. The solution has a density approximating the density of blood for retention of the solution in a catheter during the lock period.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 5, 2023
    Assignee: HemoCleanse Technologies LLC
    Inventor: Stephen R. Ash
  • Publication number: 20230184507
    Abstract: The device of the present disclosure is a weapon. The weapon having a CO2 powered projectile which is fired from the weapon, used principally for self-defense. The projectile is generally rocket shaped wherein the front end of the rocket can be formed by a rounded shape of a front of a CO2 cylinder. The impact of the rocket projectile on a human could cause some pain, depending upon exactly what part of the body it hits. The impact could also cause some loss of balance to a human, due to the impact.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Inventor: Stephen R. Ash
  • Publication number: 20200368493
    Abstract: This disclosure generally relates to catheters, methods of enhancing the patency of an intravascular catheter and compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Disclosed compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A representative lock solution includes about 10% sodium citrate and about 1.5% benzyl alcohol. The solution has a density approximating the density of blood for retention of the solution in a catheter during the lock period.
    Type: Application
    Filed: November 25, 2017
    Publication date: November 26, 2020
    Inventor: Stephen R. ASH
  • Patent number: 9629368
    Abstract: In one aspect, compositions provide antimicrobial therapy as topical disinfectants. Particularly, one aspect relates to an alcohol containing antimicrobial composition that includes at least one paraben, a redox compound and an organic acid at a concentration of from about 1.5 percent to about 10 percent by weight, based on the total weight of the composition. In other aspects, antimicrobial compositions are used to topically sanitize wounds, skin areas and/or to disinfect surgical instruments or other surfaces. Still, in further aspects, methods, devices and kits relating to an antimicrobial composition are provided.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 25, 2017
    Assignee: Zurex Pharma, Inc.
    Inventors: Stephen R. Ash, Janusz Steczko
  • Patent number: 9599599
    Abstract: In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO2) in dialysate flowing through a dialysis system using a CO2 sensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of CO2 measured in the gas and the determined pH level of the dialysate.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 21, 2017
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Stephen R. Ash, Thomas A. Sullivan, David Carr, Michael James Beiriger
  • Patent number: 9155860
    Abstract: A catheter for providing a blood flow includes first and second lumen parts having a distal portion with at least one port for delivering and receiving the flow from a patient and a non-linear profile along the distal portion.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: October 13, 2015
    Assignee: Merit Medical Systems, Inc.
    Inventors: Stephen R. Ash, Kenneth E. Brown
  • Patent number: 9126011
    Abstract: A catheter for providing a blood flow includes a wall defining at least one lumen extending between a distal end and a proximal end. A distal end portion of the catheter is deformable to selectively open and close one or more ports in the wall to allow the blood flow into or out of the at least one lumen of the catheter.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 8, 2015
    Assignee: Merit Medical Systems, Inc.
    Inventors: Stephen R. Ash, Kenneth E. Brown, Roland K. Winger
  • Publication number: 20150204831
    Abstract: In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO2) in dialysate flowing through a dialysis system using a CO2 sensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of CO2 measured in the gas and the determined pH level of the dialysate.
    Type: Application
    Filed: January 30, 2015
    Publication date: July 23, 2015
    Inventors: Stephen R. Ash, Thomas A. Sullivan, David Carr, Michael James Beiriger
  • Patent number: 9011897
    Abstract: This invention relates to compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Inventive compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A lock solution provided by the invention includes citrate and a paraben. The solution preferably has a density suitable for retention of the solution in a catheter during the lock period. Another lock solution provided by the invention includes citrate, a paraben and a photo-oxidant, such as, for example, methylene blue.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 21, 2015
    Assignee: Ash Access Technology, Inc.
    Inventors: Stephen R. Ash, Janusz Steczko, Gary L. Swanson
  • Patent number: 8945936
    Abstract: In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO2) in dialysate flowing through a dialysis system using a CO2 sensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of CO2 measured in the gas and the determined pH level of the dialysate.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: February 3, 2015
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Stephen R. Ash, Thomas A. Sullivan, David Carr, Michael James Beiriger
  • Patent number: 8845590
    Abstract: A catheter configured with an elongate tube and a diffuser is disclosed. The diffuser may be configured to facilitate high flow rates through the catheter and to resist blockage of openings disposed within the body. Further, the catheter may be comprised of flexible materials to facilitate delivery into and removal from the body. In some embodiments the diffuser may be generally disc shaped.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: September 30, 2014
    Assignee: Merit Medical Systems, Inc.
    Inventor: Stephen R. Ash
  • Publication number: 20140193298
    Abstract: In one aspect, compositions provide antimicrobial therapy as topical disinfectants. Particularly, one aspect relates to an alcohol containing antimicrobial composition that includes at least one paraben, a redox compound and an organic acid at a concentration of from about 1.5 percent to about 10 percent by weight, based on the total weight of the composition. In other aspects, antimicrobial compositions are used to topically sanitize wounds, skin areas and/or to disinfect surgical instruments or other surfaces. Still, in further aspects, methods, devices and kits relating to an antimicrobial composition are provided.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 10, 2014
    Applicant: ZUREX PHARMA, INC.
    Inventors: Stephen R. Ash, Janusz Steczko
  • Patent number: 8703828
    Abstract: In one aspect, compositions provide antimicrobial therapy as topical disinfectants. Particularly, one aspect relates to an alcohol containing antimicrobial composition that includes at least one paraben, a redox compound and an organic acid at a concentration of from about 1.5 percent to about 10 percent by weight, based on the total weight of the composition. In other aspects, antimicrobial compositions are used to topically sanitize wounds, skin areas and/or to disinfect surgical instruments or other surfaces. Still, in further aspects, methods, devices and kits relating to an antimicrobial composition are provided.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 22, 2014
    Assignee: Zurex Pharma, Inc.
    Inventors: Stephen R. Ash, Janusz Steczko
  • Patent number: 8677694
    Abstract: A system for separating water from debris. A gutter cover is secured to a gutter and extends to engage the top of the roof adjacent the gutter along a contact line. The gutter cover may have a perforate surface comprising closely spaced and normally water impervious holes through the gutter cover such that water does not flow through the holes unless the water is forced through the holes or attracted through the holes. The line of contact forms an imperfect junction between the edge of the gutter cover and the roof so that water flows through the contact line and beneath the gutter cover.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: March 25, 2014
    Inventors: Stephen R. Ash, Marianne Y. Ash
  • Publication number: 20140018772
    Abstract: Disclosed herein are various embodiments of catheters configured to reduce, minimize or prevent occlusion of blood flow resulting from thrombus or fibrin sheath formation, related systems, and methods of use.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 16, 2014
    Applicant: MERIT MEDICAL SYSTEMS, INC.
    Inventor: Stephen R. Ash
  • Publication number: 20130296770
    Abstract: A catheter configured with an elongate tube and a diffuser is disclosed. The diffuser may be configured to facilitate high flow rates through the catheter and to resist blockage of openings disposed within the body. Further, the catheter may be comprised of flexible materials to facilitate delivery into and removal from the body. In some embodiments the diffuser may be generally disc shaped.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: MERIT MEDICAL SYSTEMS, INC.
    Inventor: Stephen R. Ash
  • Publication number: 20130178526
    Abstract: This invention relates to compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Inventive compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A lock solution provided by the invention includes citrate and a paraben. The solution preferably has a density suitable for retention of the solution in a catheter during the lock period. Another lock solution provided by the invention includes citrate, a paraben and a photo-oxidant, such as, for example, methylene blue.
    Type: Application
    Filed: February 27, 2013
    Publication date: July 11, 2013
    Applicant: Ash Access Technology Inc.
    Inventors: Stephen R. Ash, Janusz Steczko, Gary L. Swanson
  • Patent number: 8409864
    Abstract: An ammonia gas sensing device includes a housing defining a fluid flow path. The fluid flow path includes a fluid inlet, a fluid outlet, and an access port. A gas permeable/liquid impermeable membrane is mounted on and sealed against the housing at the access port such that the membrane is exposed to the fluid flow path but fluid is blocked from flowing outward of the access port around rather than through the membrane. An ammonia sensor is mounted on the housing at the access port in a position outward of the membrane. A system for using the ammonia sensing device includes the ammonia gas sensing device, a light source directed at the ammonia sensor, a photo detector to measure the light reflected off the ammonia sensor from the light source, and a controller for controlling the light source and optical sensor.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: April 2, 2013
    Assignee: Renal Solutions, Inc.
    Inventor: Stephen R. Ash