Patents by Inventor Duurt Pleter Willem Alklma

Duurt Pleter Willem Alklma 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).

  • Optical fiber
    Patent number: 7200310
    Abstract: Optical fiber capable of controlling attenuation losses caused by microbending on the signal transmitted thereby. The optical fiber comprises: a) an internal glass portion; b) a first coating layer of a first polymeric material surrounding said glass portion; and c) a second coating layer of a second polymeric material surrounding said first coating layer, wherein said first polymeric material has a hardening temperature lower than ?10° C., an equilibrium tensile modulus lower than 1.5 MPa, wherein said first coating layer has a thickness of from 18 ?m to 28 ?m and wherein said second coating layer has a thickness of from 10 ?m to 20 ?m.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: April 3, 2007
    Assignee: Prysmian Cavi e Sistemi Energia S.r.l.
    Inventors: Giacomo Stefano Roba, Lidia Terruzzi, Sabrina Fogliani, Marco Arimondi, Sandra Joanna Nagelvoort, Johannes Adrianus Van Eekelen, Adrianus Gijsbertus Maria Abel, Gouke Dirk Jan Geus, Duurt Pleter Willem Alklma