Patents by Inventor Tiit Varema

Tiit Varema 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).

  • Method for treating powder particles
    Publication number: 20070113888
    Abstract: A method for treating powder particles of a Cu(In,Ga)Se2, compound, according to which the powder particles and a quantity of sulfur are introduced into a vessel and heated and maintained at a constant temperature over a period of time. The invention also relates to a monograin-membrane solar cell containing a rear contact, a monogram membrane containing powder particles that have been treated according to the inventive method, at least one semiconductor layer and a front contact.
    Type: Application
    Filed: December 14, 2004
    Publication date: May 24, 2007
    Applicant: SCHEUTEN GLASGROEP
    Inventors: Volker Geyer, Marit Kauk, Jaan Raudoja, Tiit Varema, Mare Altosaar