Patents by Inventor David B. Welch

David B. Welch 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).

  • Eye Drops
    Publication number: 20180338911
    Abstract: A composition and method for applying the composition topically to an eye for improving corneal and surface hydration and reducing blue light neuro-stimulation, especially during the several hours preceding sleep. In one embodiment, the composition combines an artificial tear with fluorescein sodium. The artificial tear may include carboxymehylcellulose sodium, polyvinyl alcohol, hydroxypropyl cellulose and glycerin. In another embodiment, the composition comprises synthetic human melanin combined with fluorescein sodium in an aqueous solution to reduce ocular UV light and HEV light exposure.
    Type: Application
    Filed: October 26, 2016
    Publication date: November 29, 2018
    Inventors: David B. Welch, Colman R. Kraff
  • Electrically isolated actuator output shaft
    Patent number: 7717397
    Abstract: An actuator for use in a fuel system. The actuator has a first metallic section adapted to be coupled to a motor, a second metallic section adapted to be coupled to a valve, and a nonmetallic section coupled to the first and second metallic sections for transmitting torque from the first metallic section to the second metallic section.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: May 18, 2010
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Andrew D. Campany, David B. Welch, Andrew L. Vasquez
  • Electrically isolated actuator output shaft
    Patent number: 7303481
    Abstract: An actuator for use in a fuel system. The actuator has a first metallic section adapted to be coupled to a motor, a second metallic section adapted to be coupled to a valve, and a nonmetallic section coupled to the first and second metallic sections for transmitting torque from the first metallic section to the second metallic section.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: December 4, 2007
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Andrew D. Campany, David B. Welch, Andrew L. Vasquez