Patents by Inventor Richard L. Hilderbrand

Richard L. Hilderbrand 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).

  • Composition and method for detecting an adulterant in an aqueous sample
    Patent number: 6861262
    Abstract: It is discovered that a composition comprising at least one amine and at least one stabilizer may be useful in detecting the presence of an adulterant in a urine sample. Such adulterant includes an oxidizing agent.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: March 1, 2005
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: John Novinski, Barry Sample, Richard L. Hilderbrand, Susan Mills, Victoria Johnson
  • Composition and method for detecting an adulterant in an aqueous sample
    Publication number: 20020106807
    Abstract: It is discovered that a composition comprising at least one amine and at least one stabilizer may be useful in detecting the presence of an adulterant in a urine sample. Such adulterant includes an oxidizing agent.
    Type: Application
    Filed: June 6, 2001
    Publication date: August 8, 2002
    Applicant: Quest Diagnostics, Inc.
    Inventors: John Novinski, Barry Sample, Richard L. Hilderbrand, Susan Mills, Victoria Johnson