Patents by Inventor Paul DeRoussel

Paul DeRoussel 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 of making retroreflective sheeting and slot die apparatus
    Patent number: 7410604
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: August 12, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Stanley C. Erickson, James C. Breister, Gregory H. Van Erem, David W. Meitz, Stephen W. Mohn, Paul DeRoussel
  • Method of making retroreflective sheeting and slot die apparatus
    Patent number: 7364421
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: April 29, 2008
    Assignee: 3M Innovative Properties Comapny
    Inventors: Stanley C. Erickson, James C. Breister, Gregory H. Van Erem, David W. Meitz, Stephen W. Mohn, Paul DeRoussel
  • Method of making retroreflective sheeting and slot die apparatus
    Publication number: 20060134259
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 22, 2006
    Inventors: Stanley Erickson, James Breister, Gregory Van Erem, David Meitz, Stephen Mohn, Paul DeRoussel
  • Method of making retroreflective sheeting and slot die apparatus
    Publication number: 20040173920
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 9, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Stanley C. Erickson, James C. Breister, Gregory H. Van Erem, David W. Meitz, Stephen W. Mohn, Paul DeRoussel
  • Microfibrillated articles comprising hydrophillic component
    Patent number: 6692823
    Abstract: Described are hydrophilic fibrillated articles that include melt-processable polymer and hydrophilic component such as hydrophilic surfactant or hydrophilic polymer, as well as methods of preparing such articles.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 17, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Kody, Mario A. Perez, Thomas P. Klun, Paul D. Graham, Christopher K. Haas, Ravi K. Sura, Diane R. Wolk, Julie S. Prudich, Larry R. Krepski, Terry R. Hobbs, John M. Sebastian, Paul DeRoussel
  • Microfibrillated articles comprising hydrophilic component
    Publication number: 20030138612
    Abstract: Described are hydrophilic fibrillated articles comprising melt-processable polymer and hydrophilic component such as hydrophilic surfactant or hydrophilic polymer, as well as methods of preparing such articles.
    Type: Application
    Filed: December 19, 2001
    Publication date: July 24, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Robert S. Kody, Mario A. Perez, Thomas P. Klun, Paul D. Graham, Christopher K. Haas, Ravi K. Sura, Diane R. Wolk, Julie S. Prudich, Larry R. Krepski, Terry R. Hobbs, John M. Sebastian, Paul DeRoussel