Patents by Inventor Walter Lee

Walter Lee 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).

  • Publication number: 20250222723
    Abstract: A tire (10) comprises a crown block (12), two beads (32), and two sidewalls (30) connecting each bead (32) to the crown block (12). The crown block (12) comprises a crown reinforcement (16) comprising a corrugated crown layer (24, 26, 28) comprising corrugations. The tire (10) comprises a sidewall insert (90) comprising a rigid elastomeric composition (92, 93, 94) of which the radially exterior end (96) is arranged: radially to the outside of the equator (E) of the tyre, and axially to the inside of the axial end (241, 242) of the radially innermost crown layer (24) of the crown reinforcement (16) and at an axial distance ENG?20 mm from the axial end (242).
    Type: Application
    Filed: March 6, 2023
    Publication date: July 10, 2025
    Inventors: WALTER LEE WILLARD, BENJAMIN VILPERT, PATRICE FRAYSSE, FRANCOIS-XAVIER BRUNEAU
  • Publication number: 20250205046
    Abstract: A delivery system and method for delivering a prosthetic heart valve to the aortic valve. The system includes a delivery catheter having a steering mechanism thereon for delivering a balloon-expandable prosthetic heart valve to the aortic valve through an introducer passing into the left ventricle through its apex. The introducer may have a more floppy distal section than a proximal section to reduce trauma to the heart wall while preserving good operating field stability. The delivery catheter includes a deflecting segment just proximal to a distal balloon to facilitate positioning of the prosthetic heart valve in the proper orientation. A trigger in a catheter handle may be coupled to a deflection wire that actuates the deflecting segment, while a slider in the handle controls retraction of a valve pusher. The prosthetic heart valve may be installed over the existing calcified leaflets, and a pre-dilation valvuloplasty procedure may also be utilized.
    Type: Application
    Filed: March 13, 2025
    Publication date: June 26, 2025
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Teodoro S. Jimenez, Walter Lee, Mark M. Dehdashtian, Kristopher J. Yee
  • Publication number: 20250151694
    Abstract: An automatic feeder apparatus for feeding a rodent in a cage is provided. The automatic feeder apparatus comprises a food container for holding food, and the food container comprises an accessible region and a blocked region. The food container is configured to be automatically switchable between an accessible state, in which the food is accessible to the rodent, and a blocked state, in which the food is blocked from access to the rodent.
    Type: Application
    Filed: November 8, 2024
    Publication date: May 15, 2025
    Inventors: Hiu Tung CHEUNG, Tsz Ching CHAN, Tsz Wai FUNG, Chi Ming Reuben CHEUNG, Yat Wa CHAN, Ching Walter LEE
  • Patent number: 12274616
    Abstract: A delivery system and method for delivering a prosthetic heart valve to the aortic valve. The system includes a delivery catheter having a steering mechanism thereon for delivering a balloon-expandable prosthetic heart valve to the aortic valve through an introducer passing into the left ventricle through its apex. The introducer may have a more floppy distal section than a proximal section to reduce trauma to the heart wall while preserving good operating field stability. The delivery catheter includes a deflecting segment just proximal to a distal balloon to facilitate positioning of the prosthetic heart valve in the proper orientation. A trigger in a catheter handle may be coupled to a deflection wire that actuates the deflecting segment, while a slider in the handle controls retraction of a valve pusher. The prosthetic heart valve may be installed over the existing calcified leaflets, and a pre-dilation valvuloplasty procedure may also be utilized.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 15, 2025
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Teodoro S. Jimenez, Walter Lee, Mark M. Dehdashtian, Kristopher J. Yee
  • Publication number: 20250073393
    Abstract: The invention relates to a kit for refilling an implantable pump and, more particularly, to packaging and contents of a kit to improve the workflow of a user while adding medication to an implantable pump that has been surgically implanted in a patient. kit for refilling an implanted pump. The kit comprises a setup tray containing at least one needle, a fenestrated drape, a first syringe, a needle, a filter, and clampable tubing; and a medication tray containing a second syringe, at least one ampule of medication, an ampule opener, and aspiration tubing. The medication tray is molded to have a recess that securely holds the at least one ampule in both a horizontal position and in a vertical position.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 6, 2025
    Applicant: AMNEAL PHARMACEUTICALS, LLC
    Inventors: Walter Lee Nash, Scott William Spencer
  • Publication number: 20250002878
    Abstract: Provided are compositions comprising recombinant DNA polymerases that include amino acid substitutions, insertions, deletions, and/or exogenous features that confer modified properties upon the polymerase for enhanced single molecule sequencing. Such properties include increased resistance to photodamage, and can also include enhanced metal ion coordination, reduced exonuclease activity, reduced reaction rates at one or more steps of the polymerase kinetic cycle, decreased branching fraction, altered cofactor selectivity, increased yield, increased thermostability, increased accuracy, increased speed, increased readlength, and the like. Also provided are nucleic acids which encode the polymerases with the aforementioned phenotypes, as well as methods of using such polymerases to make a DNA or to sequence a DNA template.
    Type: Application
    Filed: May 16, 2024
    Publication date: January 2, 2025
    Inventors: Satwik Kamtekar, Arek Bibillo, Keith Bjornson, Fred Christians, Colleen Cutcliffe, Jeremiah Hanes, Lei Jia, Walter Lee, Erik Miller, Pranav Patel
  • Publication number: 20240360652
    Abstract: An insulated self-supporting water hydrant operating apparatus includes a molded exterior configured to provide stability and rigidity for standalone and alternative applications, a frost-free water valve, internal water conduit linked to an external water source, and expanding foam insulation to fill in all spaces inside the molded exterior shell and protect the plumbing and insulation from extreme weather conditions.
    Type: Application
    Filed: April 29, 2024
    Publication date: October 31, 2024
    Inventor: Walter Lee Smith
  • Publication number: 20240197469
    Abstract: A docking station frame for a medical device includes a plurality of strut portions extending from a proximal end to a distal end and forming a plurality of cells. When the docking station frame is in an expanded, unconstrained condition, the plurality of strut portions form a substantially continuous concave longitudinal profile having outer radial retaining portions at the proximal end and the distal end and an inner radial central portion defining a seat.
    Type: Application
    Filed: February 27, 2024
    Publication date: June 20, 2024
    Inventors: Jensen Chen, Alison Louise Rodriguez, Walter Lee, Andrew Paul Schaffer
  • Publication number: 20240156145
    Abstract: This present disclosure provides reliable methods and apparatus for delivering a pharmaceutical active ingredient to an edible substrate. In some examples, the pharmaceutical active ingredient is delivered to voids that are formed in the edible substrate. The voids can then be closed as desired. The edible substrate can be configured as a food product or a dosage form as desired.
    Type: Application
    Filed: November 15, 2023
    Publication date: May 16, 2024
    Inventors: William Warren, Walter Lee Smith
  • Publication number: 20240115379
    Abstract: Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.
    Type: Application
    Filed: December 16, 2023
    Publication date: April 11, 2024
    Inventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
  • Patent number: 11877929
    Abstract: Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: January 23, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
  • Publication number: 20230380966
    Abstract: A method of delivery a prosthetic heart valve includes inserting a delivery apparatus and a prosthetic heart valve into a patient's vasculature. The delivery apparatus includes a steerable guide catheter, a balloon catheter, and a flex indicator. The balloon catheter extends coaxially through the guide catheter, the prosthetic heart valve is mounted on a distal end portion of the balloon catheter, and the flex indicator is movably coupled to a handle of the guide catheter. The method further includes adjusting flexion of a steerable section of the guide catheter to position the prosthetic heart valve. The flex indicator moves relative to the handle of the guide catheter as the flexion of the steerable section is adjusted, and the handle comprises one or more visual indicators adjacent the flex indicator to provide visual indication of an amount of flexion of the steerable section of the guide catheter.
    Type: Application
    Filed: August 7, 2023
    Publication date: November 30, 2023
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Thanh Huy Le, Tri D. Tran, Ronaldo C. Cayabyab, David M. Taylor, Antonio O. Vidal, Robert Bowes, Tram Ngoc Nguyen, Walter Lee
  • Publication number: 20230263726
    Abstract: A layered edible product includes a core and at least one active layer that is supported by the core. The at least one active layer can include a respective API. The edible product is configured to be placed against a mucosal surface of the oral cavity, which causes the respective API of the at least one active layer to enter the bloodstream through the mucosal surface. The core can be ingested gastrointestinally or can be dissolvable against the mucosal surface or both. The core can include a core API, or optionally the core can be API-free.
    Type: Application
    Filed: February 17, 2023
    Publication date: August 24, 2023
    Inventors: Walter Lee Smith, William Warren
  • Publication number: 20230118618
    Abstract: Methods and apparatus are described for delivering API to a smokable structures and tea bags that contain a fill material. The fill material can include cannabis plant matter, such as cannabis flowers. In one example, an injection tube can be inserted into a smokable structure, and the API can be emitted as a spray. Other methods examples of delivering API to smokable structures are disclosed.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 20, 2023
    Inventors: William Warren, Walter Lee Smith, David A. Doyle
  • Publication number: 20230077762
    Abstract: This present disclosure provides reliable methods and apparatus for delivering microdroplets containing an active pharmaceutical ingredient (API) to underlying substrates. A control system is provided to ensure that the API dosage is both accurate and repeatable.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 16, 2023
    Inventors: William Warren, Walter Lee Smith
  • Publication number: 20230067912
    Abstract: Fire resistant lightweight cladding 10 comprising thin sheet material having an outer layer which is predominantly steel and a thicker inner layer which is predominantly aluminium, the inner layer being a supporting layer and the sheet material being formed into a panel of predetermined outline and used in a fire-resistant wall panel assembly comprising a substrate supporting outer cladding sheets in side by side relation, each cladding sheet being a composite of a relatively thin steel layer and a relatively thick aluminium layer, the sheets described herein have a steel outer layer which is about 4 mm thick and an aluminium layer is about 2 mm thick and panel density from 6 kg/m2 to 9 kg/m2. The panels were tested according to British Standard BS 8414-22015 (amdt 1) as modified by Australian 5113-2016 (amdt 1) and the specimen passes the classification criteria 5.4.4(b) which concerns the temperature differential from outer fireside and inside and 5.4.5(g) which concerns debris.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 2, 2023
    Inventor: Walter Lee
  • Publication number: 20230053985
    Abstract: A delivery apparatus comprises a handle, a first shaft, and a second shaft. The first shaft extends through and is movable axially relative to the second shaft. The delivery apparatus comprises an inflatable balloon having a proximal end portion coupled to the second shaft and a distal end portion of the balloon coupled to the first shaft. An inflation hub assembly comprises an inflation manifold and a piston, wherein the inflation manifold comprises a main body defining a main lumen and an inflation port defining an inflation port lumen. The piston extends into the main lumen and is slidable relative to the inflation manifold. A proximal end portion of the first shaft is coupled to the piston. The piston is moveable relative to the inflation manifold in proximal and distal directions to produce movement of the first shaft and adjust the length of the balloon.
    Type: Application
    Filed: October 12, 2022
    Publication date: February 23, 2023
    Inventors: Kristen Hicks, Michael C. Murad, Michael R. Bialas, Walter Lee
  • Publication number: 20230025110
    Abstract: A delivery system and method for delivering a prosthetic heart valve to the aortic valve. The system includes a delivery catheter having a steering mechanism thereon for delivering a balloon-expandable prosthetic heart valve to the aortic valve through an introducer passing into the left ventricle through its apex. The introducer may have a more floppy distal section than a proximal section to reduce trauma to the heart wall while preserving good operating field stability. The delivery catheter includes a deflecting segment just proximal to a distal balloon to facilitate positioning of the prosthetic heart valve in the proper orientation. A trigger in a catheter handle may be coupled to a deflection wire that actuates the deflecting segment, while a slider in the handle controls retraction of a valve pusher. The prosthetic heart valve may be installed over the existing calcified leaflets, and a pre-dilation valvuloplasty procedure may also be utilized.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Inventors: Teodoro S. Jimenez, Walter Lee, Mark M. Dehdashtian, Kristopher J. Yee
  • Patent number: 11554013
    Abstract: Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 17, 2023
    Assignee: Edwards Lifesciences Corporation
    Inventors: Walter Lee, Mark Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
  • Publication number: 20220386670
    Abstract: This present disclosure provides reliable methods and apparatus for delivering a pharmaceutical active ingredient to a food product that is produced in a batch process. In one example, the active pharmaceutical ingredient is added after the batch food product has been cooked and cooled. The food product can be a candy, a baked good, or any alternative food product that is mixed as a batch and subsequently cooked and cooled.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 8, 2022
    Inventors: William Warren, Walter Lee Smith