Patents by Inventor Pingyong Xu
Pingyong Xu 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: 20150375454Abstract: In one aspect, build materials operable for use in 3D printing systems are described herein. In some embodiments, a build material comprises about 10 to 30 percent by weight of an oligomeric curable material; about 50 to 75 percent by weight of at least one diluent; and about 3 to 15 percent by weight of a reactive component. Moreover, in some cases, the build material is free or substantially free of a non-reactive wax component.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Inventors: Pingyong XU, John STOCKWELL
-
Patent number: 9157007Abstract: In one aspect, build materials operable for use in 3D printing systems are described herein. In some embodiments, a build material comprises about 10 to 30 percent by weight of an oligomeric curable material; about 50 to 75 percent by weight of at least one diluent; and about 3 to 15 percent by weight of a reactive component. Moreover, in some cases, the build material is free or substantially free of a non-reactive wax component.Type: GrantFiled: September 12, 2013Date of Patent: October 13, 2015Assignee: 3D SYSTEMS, INCORPORATEDInventors: Pingyong Xu, John Stockwell
-
Publication number: 20150259548Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: ApplicationFiled: March 11, 2015Publication date: September 17, 2015Inventors: Patricia WANG, Pingyong XU, Jule W. THOMAS, JR., Michael B. MEINHARDT
-
Publication number: 20150151488Abstract: In one aspect, inks for use with a 3D printer are described herein. In some embodiments, an ink comprises a polymerizable material and a reactive wax comprising a saturated alkyl moiety bonded to an ethyleneically unsaturated moiety through a urethane, urea, ester, or carbonate ester linkage, wherein the ink is free or substantially free of non-reactive wax.Type: ApplicationFiled: February 10, 2015Publication date: June 4, 2015Inventor: Pingyong XU
-
Patent number: 8980406Abstract: In one aspect, inks for use with a 3D printer are described herein. In some embodiments, an ink comprises a polymerizable material and a reactive wax comprising a saturated alkyl moiety bonded to an ethyleneically unsaturated moiety through a urethane, urea, ester, or carbonate ester linkage, wherein the ink is free or substantially free of non-reactive wax.Type: GrantFiled: August 28, 2012Date of Patent: March 17, 2015Assignee: 3D Systems, Inc.Inventor: Pingyong Xu
-
Patent number: 8975352Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the object can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: GrantFiled: November 18, 2013Date of Patent: March 10, 2015Assignee: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20140076499Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the object can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: ApplicationFiled: November 18, 2013Publication date: March 20, 2014Applicant: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20140072712Abstract: In one aspect, inks for use with a three dimensional printing system are described herein. In some embodiments, an ink for use in a three dimensional printing system comprises about 10-95 weight % polymerizable component and about 3-25 weight % non-reactive wax component, wherein the ink when cured has a Tg greater than the melting point of the non-reactive wax component.Type: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Applicant: 3D Systems, Inc.Inventor: Pingyong Xu
-
Publication number: 20140065378Abstract: In one aspect, inks for use with a 3D printer are described herein. In some embodiments, an ink comprises a polymerizable material and a reactive wax comprising a saturated alkyl moiety bonded to an ethyleneically unsaturated moiety through a urethane, urea, ester, or carbonate ester linkage, wherein the ink is free or substantially free of non-reactive wax.Type: ApplicationFiled: August 28, 2012Publication date: March 6, 2014Applicant: 3D Systems, Inc.Inventor: Pingyong Xu
-
Patent number: 8642692Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the of can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: GrantFiled: September 30, 2013Date of Patent: February 4, 2014Assignee: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20140027950Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the object can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: ApplicationFiled: September 30, 2013Publication date: January 30, 2014Applicant: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20140017460Abstract: In one aspect, build materials operable for use in 3D printing systems are described herein. In some embodiments, a build material comprises about 10 to 30 percent by weight of an oligomeric curable material; about 50 to 75 percent by weight of at least one diluent; and about 3 to 15 percent by weight of a reactive component. Moreover, in some cases, the build material is free or substantially free of a non-reactive wax component.Type: ApplicationFiled: September 12, 2013Publication date: January 16, 2014Applicant: 3D Systems, Inc.Inventors: Pingyong Xu, John Stockwell
-
Patent number: 8575258Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the object can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: GrantFiled: May 11, 2010Date of Patent: November 5, 2013Assignee: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20130236706Abstract: In one aspect, support materials operable for use in 3D printing systems are described herein. In some embodiments, a support material comprises a wax component comprising at least one ethoxylated fatty alcohol and a viscosity modifying agent, wherein the support material is water dispersible. In some embodiments, the wax component comprises a mixture of at least one fatty alcohol and at least one ethoxylated fatty alcohol.Type: ApplicationFiled: April 26, 2013Publication date: September 12, 2013Applicant: 3D Systems, Inc.Inventors: Pingyong Xu, Khalil Moussa, John Stockwell
-
Patent number: 8460451Abstract: In one aspect, support materials operable for use in 3D printing systems are described herein. In some embodiments, a support material comprises a wax component comprising at least one ethoxylated fatty alcohol and a viscosity modifying agent, wherein the support material is water dispersible. In some embodiments, the wax component comprises a mixture of at least one fatty alcohol and at least one ethoxylated fatty alcohol.Type: GrantFiled: February 23, 2011Date of Patent: June 11, 2013Assignee: 3D Systems, Inc.Inventors: Pingyong Xu, Khalil Moussa, John Stockwell
-
Publication number: 20120231232Abstract: In one aspect, build materials operable for use in 3D printing systems are described herein. In some embodiments, a build material comprises an oligomeric curable material, a reactive component that is solid at 25° C., and at least one diluent, wherein the reactive component comprises at least one chemical moiety that is polymerizable with a chemical moiety contained in the oligomeric curable material and/or the at least one diluent.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Applicant: 3D Systems, Inc.Inventors: Pingyong Xu, John Stockwell
-
Publication number: 20120213976Abstract: In one aspect, support materials operable for use in 3D printing systems are described herein. In some embodiments, a support material comprises a wax component comprising at least one ethoxylated fatty alcohol and a viscosity modifying agent, wherein the support material is water dispersible. In some embodiments, the wax component comprises a mixture of at least one fatty alcohol and at least one ethoxylated fatty alcohol.Type: ApplicationFiled: February 23, 2011Publication date: August 23, 2012Applicant: 3D Systems, Inc.Inventors: Pingyong Xu, Khalil Moussa, John Stockwell
-
Publication number: 20100288194Abstract: There is provided compositions and methods for producing three-dimensional objects by selective deposition modeling with a polar build material and a non-polar support material. The build material comprises a hydrocarbon wax material and a viscosity modifier, and the support material comprises a hydrocarbon alcohol wax material and a viscosity modifier. After the selective deposition modeling process has been completed, the object can be placed in a bath of polar solvent to remove the support material. The particular materials provided herein, and the post-processing methods associated therewith, provide for improved part quality of the three-dimensional object and for improved post-processing techniques. The three-dimensional objects can subsequently be used in a number of applications, such as patterns for investment casting.Type: ApplicationFiled: May 11, 2010Publication date: November 18, 2010Applicant: 3D Systems, Inc.Inventors: John Stockwell, Pingyong Xu
-
Publication number: 20100056661Abstract: A radiation-curable composition useful for the production of three-dimensional solid articles is provided. The radiation-curable composition comprises at least one hyperbranched poly(meth)acrylate compound, at least one light sensitizer, and at least one free radical polymerization initiator.Type: ApplicationFiled: September 3, 2008Publication date: March 4, 2010Inventor: Pingyong Xu
-
Patent number: 7399796Abstract: 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: GrantFiled: June 17, 2004Date of Patent: July 15, 2008Assignee: 3D Systems, Inc.Inventors: Pingyong Xu, Stephen A. Ruatta, Kris Alan Schmidt, Vu A. Doan