Patents by Inventor Vu A. Doan

Vu A. Doan 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).

  • Phase change support material composition
    Patent number: 7399796
    Abstract: A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: July 15, 2008
    Assignee: 3D Systems, Inc.
    Inventors: Pingyong Xu, Stephen A. Ruatta, Kris Alan Schmidt, Vu A. Doan
  • Ultra-violet light curable hot melt composition
    Patent number: 7378460
    Abstract: A UV curable composition useful for three-dimensional inkjet printing comprising (i) at least one UV curable urethane (meth)acrylate resin; (ii) at least one wax; (iii) at least one (meth)acrylate diluent; (iv) at least one photoinitiator; and (v) at least one polymerization inhibitor; wherein the amount of wax (ii) is sufficient to phase change the UV curable composition after jetting.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: May 27, 2008
    Assignee: 3D Systems, Inc.
    Inventors: Kris Alan Schmidt, Vu A. Doan, Pingyong Xu, John S. Stockwell, Susan Kay Holden
  • Phase change support material composition
    Patent number: 7176253
    Abstract: A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: February 13, 2007
    Assignee: 3D Systems, Inc.
    Inventors: Pingyong Xu, Stephen A. Ruatta, Kris Alan Schmidt, Vu A. Doan
  • Ultra-violet light curable hot melt composition
    Patent number: 6841589
    Abstract: A UV curable composition useful for three-dimensional inkjet printing comprising (i) at least one UV curable urethane (meth)acrylate resin; (ii) at least one wax; (iii) at least one (meth)acrylate diluent; (iv) at least one photoinitiator; and (v) at least one polymerization inhibitor; wherein the amount of wax (ii) is sufficient to phase change the UV curable composition after jetting.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: January 11, 2005
    Assignee: 3D Systems, Inc.
    Inventors: Kris Alan Schmidt, Vu A. Doan, Pingyong Xu, John S. Stockwell, Susan Kay Holden
  • Phase change support material composition
    Publication number: 20040242728
    Abstract: A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 2, 2004
    Applicant: 3D Systems, Inc.
    Inventors: Pingyong Xu, Stephen A. Ruatta, Kris Alan Schmidt, Vu A. Doan
  • Phase change support material composition
    Publication number: 20030100658
    Abstract: A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
    Type: Application
    Filed: June 28, 2002
    Publication date: May 29, 2003
    Applicant: 3D Systems, Inc.
    Inventors: Pingyong Xu, Stephen A. Ruatta, Kris Alan Schmidt, Vu A. Doan
  • Ultra-violet light curable hot melt composition
    Publication number: 20030092820
    Abstract: A UV curable composition useful for three-dimensional inkjet printing comprising (i) at least one UV curable urethane (meth)acrylate resin; (ii) at least one wax; (iii) at least one (meth)acrylate diluent; (iv) at least one photoinitiator; and (v) at least one polymerization inhibitor; wherein the amount of wax (ii) is sufficient to phase change the UV curable composition after jetting.
    Type: Application
    Filed: October 3, 2001
    Publication date: May 15, 2003
    Inventors: Kris Alan Schmidt, Vu A. Doan, Pingyong Xu, John S. Stockwell, Susan Kay Holden