Patents Assigned to SoftRay, Inc.
  • Apparatus and methods for pre-treating swabs prior to collection of specimens to reduce false positive detections
    Patent number: 11401654
    Abstract: Methods and apparatus for pre-treating swabs prior to collection of specimens to reduce false positive detections by immersing a swab in a liquid chemical pre-treating agent for a treatment period of time. Then the swab is removed and circulated in a rinse agent. The pre-treating agent may be an oxidizing agent, a reducing agent, a bleaching agent (e.g. sodium hypochlorite solution) or a fluorescence suppressing dye (such as Evans blue, Trypan blue, or black dye).
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 2, 2022
    Assignee: SoftRay, Inc.
    Inventor: Paul E. Johnson