Patents by Inventor Senén Camarena

Senén Camarena 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).

  • Meltblown process with mechanical attenuation
    Patent number: 6773648
    Abstract: Cellulose containing dope is extruded through orifices and into a stream of gas moving in a direction generally parallel to the direction that the filaments are formed with varying degrees of mechanical attenuation provided to the filaments using a take-up device, such as a winder.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: August 10, 2004
    Assignee: Weyerhaeuser Company
    Inventors: Mengkui Luo, Vincent A. Roscelli, Senen Camarena, Amar N. Neogi, John S. Selby
  • Lyocell fibers having high hemicellulose content
    Patent number: 6692827
    Abstract: The present invention is directed to a lyocell fiber having a high hemicellulose content. The fibers are readily cut into staple lengths and can be spun into yarns with excellent knitting and weaving characteristics which dye exceptionally well. The fibers have a cotton-like denier.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: February 17, 2004
    Assignee: Weyerhaeuser Company
    Inventors: Mengkui Luo, Vincent A. Roscelli, Senén Camarena, Amar N. Neogi, Michael J. Yancey, Paul G. Gaddis
  • Meltblown process with mechanical attenuation
    Publication number: 20020160186
    Abstract: Cellulose containing dope is extruded through orifices and into a stream of gas moving in a direction generally parallel to the direction that the filaments are formed with varying degrees of mechanical attenuation provided to the filaments using a take-up device, such as a winder.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 31, 2002
    Applicant: Weyerhaeuser Company
    Inventors: Mengkui Luo, Vincent A. Roscelli, Senen Camarena, Amar N. Neogi, John S. Selby
  • Lyocell fibers having high hemicellulose content
    Publication number: 20020037407
    Abstract: The present invention is directed to a lyocell fiber having a high hemicellulose content. The fibers are readily cut into staple lengths and can be spun into yarns with excellent knitting and weaving characteristics which dye exceptionally well. The fibers have a cotton-like denier.
    Type: Application
    Filed: September 18, 2001
    Publication date: March 28, 2002
    Applicant: Weyerhaeuser Company
    Inventors: Mengkui Luo, Vincent A. Roscelli, Senen Camarena, Amar N. Neogi, Michael J. Yancey, Paul G. Gaddis
  • Process for melt blowing continuous lyocell fibers
    Patent number: 6306334
    Abstract: The present invention is directed to a method of preparing continuous lyocell fibers by melt blowing techniques, a pulp useful for making lyocell fibers and to the fibers produced by the method. In particular, the method enables high throughputs of fibers of cotton-like deniers. The fibers are readily cut into staple lengths and can be spun into yarns with excellent knitting and weaving characteristics which dye exceptionally well.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: October 23, 2001
    Assignee: The Weyerhaeuser Company
    Inventors: Mengkui Luo, Vincent A. Roscelli, Senén Camarena, Amar N. Neogi, Michael J. Yancey, Paul G. Gaddis