Patents by Inventor Roy H. White

Roy H. 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).

  • Encoding scheme for articles
    Patent number: 4476382
    Abstract: A scheme for encoding an article involves marking the article with a first material of at least one element, at least one compound of at least one element or a mixture located at a predetermined position on the article. The article is also marked with a second material of at least one element or a mixture thereof located at a predetermined position on the article. The first and second materials each have the property of emitting x-rays when subjected to a primary source of electromagnetic radiation of appropriate wavelength. The emission wavelength/wavelengths, and intensity/intensities for the first material are a predetermined, coded indication of the location of the second material. The emission wavelength/wavelengths and intensity/intensities of the second material are a predetermined identification or verification code for the article.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: October 9, 1984
    Assignee: Intex Inc.
    Inventor: Roy H. White
  • Encoding scheme for articles
    Patent number: 4445225
    Abstract: A scheme for encoding an article involves marking the article with a first material of at least one element, at least one compound of at least one element or a mixture located at a predetermined position on the article. The article is also marked with a second material of at least one element or a mixture thereof located at a predetermined position on the article. The first and second materials each have the property of emitting x-rays when subjected to a primary source of electromagnetic radiation of appropriate wavelength. The emission wavelength/wavelengths, and intensity/intensities for the first material are a predetermined, coded indication of the location of the second material. The emission wavelength/wavelengths and intensity/intensities of the second material are a predetermined identification or verification code for the article.
    Type: Grant
    Filed: October 21, 1980
    Date of Patent: April 24, 1984
    Assignee: Intex Inc.
    Inventor: Roy H. White