Patents by Inventor Marius Charles Boitel

Marius Charles Boitel 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).

  • Process to obtain transparent colorless and glass-ceramics so obtained
    Patent number: 4093468
    Abstract: The invention relates to glass-ceramics.It concerns a process to obtain sensibly colorless transparent glass-ceramics from a glass-ceramic composition containing more than 0.50 weight % titanium dioxide and possibly iron oxide, that would normally provide colored glass-ceramics; this process is characterized by incorporating into the said composition an appropriate proportion of neodymium oxide so as to make the glass-ceramic sensibly colorless.Application to the manufacture of diverse articles.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: June 6, 1978
    Assignee: Corning Glass Works
    Inventors: Marius Charles Boitel, Serge Andre Maurice Renault