Patents by Inventor David William Weaver

David William Weaver 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).

  • Microfluidic cartridge comprising silicone pressure-sensitive adhesive
    Patent number: 11938477
    Abstract: A microfluidic cartridge is provided. The microfluidic cartridge has an interior and an exterior. The microfluidic cartridge includes a reservoir disposed in the interior of the microfluidic cartridge and configured to contain a fluid composition. The microfluidic cartridge includes an electric circuit disposed on the exterior of the microfluidic cartridge. The electric circuit comprises a first end portion having electrical contacts and a second end portion opposing the first end portion. The microfluidic cartridge includes a microfluidic die disposed on the exterior of the microfluidic cartridge, wherein the microfluidic die is electrically connected with the second end portion of the electric circuit and in fluid communication with the reservoir. A silicone pressure-sensitive adhesive is used to join the electric circuit with the exterior of the microfluidic cartridge.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: March 26, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Chisomaga Ugochi Nwachukwu, Judith Ann Hollingshead, Paul William Dryer, David Christopher Graham, Sean Terrence Weaver
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Patent number: 6762267
    Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: July 13, 2004
    Assignee: Noveon IP Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Publication number: 20030187167
    Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 2, 2003
    Applicant: Noveon IP Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Patent number: 6596844
    Abstract: The present invention pertains to a method for forming poly-acrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 22, 2003
    Assignee: Noveon IP Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Patent number: 6492488
    Abstract: A method for forming polyacrylic acid granules and granules prepared therefrom, wherein the granules are flowable, have comparable swelling characteristics and provide comparable tablet properties to powdered polyacrylic acid, have increased bulk density and contain minimal amounts of very small particles that can cause dusting and static adherence. The granules are used to prepare controlled-release tablets, especially for pharmaceutical purposes. The tablets prepared from granules obtained by the method of present invention have superior controlled release properties.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 10, 2002
    Assignee: PMD Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Publication number: 20020086967
    Abstract: The present invention pertains to a method for forming poly-acrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 4, 2002
    Applicant: PMD Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver