Patents by Inventor Ryan Matthew Grandfield

Ryan Matthew Grandfield 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: 10939931
    Abstract: An embolectomy device includes a pair of elongate spine members extending in a substantially parallel configuration along a longitudinal axis of the device, a first plurality of clot engaging structures having first ends attached to a first one of the spine members and second ends attached to other one of the spine members, and a second plurality of clot engaging structures having first and second ends attached to the respective first and second spine members offset 180° from the first plurality of attached clot engaging structures, such that, when the embolectomy device is unsheathed within in a blood vessel alongside a clot, one of the first and second plurality of the clot engaging structures contact and compress against a wall of the blood vessel to provide a biasing force to facilitate engagement of the other one of the first and second plurality of the clot engaging structures with the clot.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 9, 2021
    Assignee: STRYKER CORPORATION
    Inventors: Ryan Matthew Grandfield, Aleksandr Leynov
  • Publication number: 20190380723
    Abstract: An embolectomy device includes a pair of elongate spine members extending in a substantially parallel configuration along a longitudinal axis of the device, a first plurality of clot engaging structures having first ends attached to a first one of the spine members and second ends attached to other one of the spine members, and a second plurality of clot engaging structures having first and second ends attached to the respective first and second spine members offset 180° from the first plurality of attached clot engaging structures, such that, when the embolectomy device is unsheathed within in a blood vessel alongside a clot, one of the first and second plurality of the clot engaging structures contact and compress against a wall of the blood vessel to provide a biasing force to facilitate engagement of the other one of the first and second plurality of the clot engaging structures with the clot.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 19, 2019
    Inventors: Ryan Matthew GRANDFIELD, Aleksandr LEYNOV
  • Publication number: 20140083370
    Abstract: An anti-theft, tamper-resistant dog harness and leash system for walking a dog and locking a dog securely to a fixed object. The system includes a wire-reinforced leash with a padlock at the end connecting to a wire-reinforced harness. Wire is integrated into the harness and leash so that they cannot easily be cut. The connection of the padlock to the harness prevents harness removal from the dog. The locking mechanism of the padlock may comprise of a key or combination lock. The locking mechanism and tamper-resistance of the system does not interfere with the normal use of the harness and leash system.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Inventors: Ryan Matthew Grandfield, Jill Noel Klingensmith