Patents by Inventor Paul Edward Humpal

Paul Edward Humpal 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).

  • Publication number: 20240059845
    Abstract: A method for producing polymeric microparticle compositions using the steps of: 1) melt processing an immiscible polymeric blend comprising an immiscible polymer matrix and a soluble polymer matrix, 2) dissolving the soluble polymer matrix of the immiscible polymeric blend using a solvent to yield a polymeric microparticle composition, and 3) isolating the polymeric microparticle composition.
    Type: Application
    Filed: December 28, 2021
    Publication date: February 22, 2024
    Inventors: Jeffrey Jacob Cernohous, Paul Edward Humpal, Ellis Clark Johnson, Meghan Corinne Huey
  • Patent number: 6984935
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: January 10, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Patent number: 6802754
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: October 12, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Publication number: 20040058614
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Application
    Filed: July 24, 2003
    Publication date: March 25, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Patent number: 6616887
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: September 9, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Publication number: 20020038916
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 4, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Patent number: 6352763
    Abstract: A curable slurry for forming ceramic microstructures on a substrate using a mold. The slurry is a mixture of a ceramic powder, a fugitive binder, and a diluent. The ceramic powder has a low softening temperature in a range of about 400° C. to 600° C. and a coefficient of thermal expansion closely matched to that of the substrate. The fugitive binder is capable of radiation curing, electron beam curing, or thermal curing. The diluent promotes release properties with the mold after curing the binder or quick and complete burn out of the binder during debinding.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: March 5, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Kenneth R. Dillon, Kyung H. Moh, Thomas Edward Wood, Raymond C. Chiu, Vincent Wen-Shiuan King, Richard P. Rusin, Timothy Lee Hoopman, Paul Edward Humpal
  • Patent number: 6325610
    Abstract: An apparatus for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: December 4, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon
  • Publication number: 20010007682
    Abstract: A method for molding and aligning microstructures on a patterned substrate using a microstructured mold. A slurry containing a mixture of a ceramic powder and a curable fugitive binder is placed between the microstructure of a stretchable mold and a patterned substrate. The mold can be stretched to align the microstructure of the mold with a predetermined portion of the patterned substrate. The slurry is hardened between the mold and the substrate. The mold is then removed to leave microstructures adhered to the substrate and aligned with the pattern of the substrate. The microstructures can be thermally heated to remove the binder and optimally fired to sinter the ceramic powder.
    Type: Application
    Filed: February 8, 2001
    Publication date: July 12, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond C. Chiu, Timothy Lee Hoopman, Paul Edward Humpal, Vincent Wen-Shiuan King, Kenneth R. Dillon