Patents by Inventor Jefferey White

Jefferey White 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).

  • Syringes and methods of syringe manufacturing
    Patent number: 7677419
    Abstract: A syringe for holding fluids susceptible to void formation when frozen and thawed before use. The interior surface of the syringe sidewall may be roughened, which serves to prevent or significantly reduce the incidence of void formation in the fluid. The required level of surface roughening for counteracting void formation may be reduced by increasing the sidewall flexibility. Alternatively, the flexibility of the syringe sidewall may operate over certain thickness ranges to prevent or significantly reduce void formation in the fluid without intentionally roughening the interior surface.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: March 16, 2010
    Assignee: Nordson Corporation
    Inventors: Henry DiGregorio, John Higson, Jefferey White