Patents by Inventor David Roy Main

David Roy Main 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).

  • Publication number: 20040087840
    Abstract: An integrated function appliance to assist the process of child birth by providing convenient timing of labor contractions, to calculate contraction event parameters, to compare contraction parameter values to pre-defined values and alert the user to the probable immediacy of birth based upon the comparison, to provide pain management assistance with a visual focus object which may be synchronized to contraction events, to provide pain management assistance with an ergonomically fashioned handle suitable for vigorous labor pain response squeezing. The invention may use a single variable capacitance actuated control input means. The invention is ergonomically designed to be is non-intrusive in the stressful context of the labor process.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventor: David Roy Main