Patents by Inventor Lawrence Cheung
Lawrence Cheung 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).
-
Patent number: 11840017Abstract: An improved additive fabrication device and a build platform are provided. The additive fabrication device is configured to form layers of material on a build surface. The additive fabrication device comprising: a build platform comprising: a rigid structure; an actuation structure attached to the rigid structure, wherein the actuation structure comprises one or more sheet handles and a flexible sheet, and wherein a first surface of the flexible sheet forms a build surface on which the additive fabrication device is configured to form layers of materials; and the one or more sheet handles are configured to be actuated to apply a force to the flexible sheet while at least a part of the actuation structure remains attached to the rigid structure, to deform at least a part of the flexible sheet away from the rigid structure.Type: GrantFiled: June 21, 2022Date of Patent: December 12, 2023Assignee: Formlabs, Inc.Inventors: Mark J. Frykman, Mark J. Ripoll, Lawrence Cheung, Nathan Jeffery, Yoav Reches, Derek J. Vilim
-
Publication number: 20220410477Abstract: An improved additive fabrication device and a build platform are provided. The additive fabrication device is configured to form layers of material on a build surface. The additive fabrication device comprising: a build platform comprising: a rigid structure; an actuation structure attached to the rigid structure, wherein the actuation structure comprises one or more sheet handles and a flexible sheet, and wherein a first surface of the flexible sheet forms a build surface on which the additive fabrication device is configured to form layers of materials; and the one or more sheet handles are configured to be actuated to apply a force to the flexible sheet while at least a part of the actuation structure remains attached to the rigid structure, to deform at least a part of the flexible sheet away from the rigid structure.Type: ApplicationFiled: June 21, 2022Publication date: December 29, 2022Applicant: Formlabs, Inc.Inventors: Mark J. Frykman, Mark J. Ripoll, Lawrence Cheung, Nathan Jeffery, Yoav Reches, Derek J. Vilim
-
Patent number: 9388397Abstract: Recombinant gelonin polypeptides with decreased antigenicity are provided. Cell-targeted constructs comprising said recombinant gelonin polypeptides are also provided. Such constructs can be used in methods for targeted cell killing, such as for treatment of cell proliferative diseases (e.g., cancer).Type: GrantFiled: February 14, 2014Date of Patent: July 12, 2016Assignee: Research Development FoundationInventors: Michael G. Rosenblum, Lawrence Cheung
-
Publication number: 20150368628Abstract: Recombinant gelonin polypeptides with decreased antigenicity are provided. Cell-targeted constructs comprising said recombinant gelonin polypeptides are also provided. Such constructs can be used in methods for targeted cell killing, such as for treatment of cell proliferative diseases (e.g., cancer).Type: ApplicationFiled: February 14, 2014Publication date: December 24, 2015Applicant: RESEARCH DEVELOPMENT FOUNDATIONInventors: Michael G. ROSENBLUM, Lawrence CHEUNG
-
Patent number: 8138311Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: GrantFiled: April 26, 2011Date of Patent: March 20, 2012Assignee: Research Development FoundationInventors: Michael G. Rosenblum, Lawrence Cheung
-
Publication number: 20110288275Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: ApplicationFiled: April 26, 2011Publication date: November 24, 2011Applicant: RESEARCH DEVELOPMENT FOUNDATIONInventors: Michael G. Rosenblum, Lawrence Cheung
-
Patent number: 7943571Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: GrantFiled: May 24, 2010Date of Patent: May 17, 2011Assignee: Research Development FoundationInventors: Michael G. Rosenblum, Lawrence Cheung
-
Publication number: 20100247518Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: ApplicationFiled: May 24, 2010Publication date: September 30, 2010Inventors: MICHAEL G. ROSENBLUM, LAWRENCE CHEUNG
-
Patent number: 7741278Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: GrantFiled: September 17, 2007Date of Patent: June 22, 2010Assignee: Research Development FoundationInventors: Michael G. Rosenblum, Lawrence Cheung
-
Publication number: 20080292544Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: ApplicationFiled: September 17, 2007Publication date: November 27, 2008Inventors: Michael G. Rosenblum, Lawrence Cheung
-
Patent number: 7304308Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. Alternatively, a non-insulating organic layer may be between the top electrode and the charge generating layer. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays. A voltage is applied to the top electrode. This voltage may be within the range of 500 V to 2,000 V.Type: GrantFiled: April 27, 2006Date of Patent: December 4, 2007Assignee: Hologic, Inc.Inventors: Lawrence Cheung, Snezana Bogdanovich, Elena Ingal, Cornell L. Williams
-
Patent number: 7285635Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: GrantFiled: April 25, 2006Date of Patent: October 23, 2007Assignee: Research Development FoundationInventors: Michael G. Rosenblum, Lawrence Cheung
-
Patent number: 7233005Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on a non-insulating organic layer. The organic layer is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.Type: GrantFiled: January 27, 2006Date of Patent: June 19, 2007Assignee: Hologic, Inc.Inventors: Snezana Bogdanovich, Lawrence Cheung, Zhenxue Jing, Samir Parikh
-
Publication number: 20070036780Abstract: The present invention concerns methods of reducing the antigenicity of a proteinaceous compound while maintaining the compounds biological activity, as well as proteinaceous compositions with biological activity but reduced antigenicity. These methods and compositions have significant benefits to a subject in need of such compounds and compositions. Also included are modified toxin compounds that are truncated and/or possess reduce antigenicity. Such designer toxins have therapeutic, diagnostic, and preventative benefits, particularly as immunotoxins. Methods of treating cancer using these immunotoxins are provided.Type: ApplicationFiled: April 25, 2006Publication date: February 15, 2007Inventors: Michael Rosenblum, Lawrence Cheung
-
Patent number: 7122803Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on and in physical and electrical contact with an amorphous selenium-based charge generator layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.Type: GrantFiled: February 16, 2005Date of Patent: October 17, 2006Assignee: Hologic, Inc.Inventors: Zhenxue Jing, Lawrence Cheung
-
Publication number: 20060192131Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. Alternatively, a non-insulating organic layer may be between the top electrode and the charge generating layer. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays. A voltage is applied to the top electrode. This voltage may be within the range of 500 V to 2,000 V.Type: ApplicationFiled: April 27, 2006Publication date: August 31, 2006Inventors: Lawrence Cheung, Snezana Bogdanovich, Elena Ingal, Cornell Williams
-
Publication number: 20060180768Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on a non-insulating organic layer. The organic layer is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.Type: ApplicationFiled: January 27, 2006Publication date: August 17, 2006Inventors: Snezana Bogdanovich, Lawrence Cheung, Zhenxue Jing, Samir Parikh
-
Publication number: 20060180771Abstract: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on and in physical and electrical contact with an amorphous selenium-based charge generator layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.Type: ApplicationFiled: February 16, 2005Publication date: August 17, 2006Inventors: Zhenxue Jing, Lawrence Cheung
-
Publication number: 20060171919Abstract: The present invention regards targeted BLyS polypeptides capable of binding to BLyS receptors and that deliver a cytotoxic agent, such as a cytotoxic peptide, for example. In particular aspects, the cytotoxic agent comprises at least part of rGelonin. These compositions are useful for treating, preventing, and/or monitoring therapy for a B-cell proliferative disorder.Type: ApplicationFiled: February 1, 2006Publication date: August 3, 2006Applicant: Research Development FoundationInventors: Michael Rosenblum, Lawrence Cheung, Mi-Ae Lyu
-
Patent number: D949093Type: GrantFiled: June 23, 2020Date of Patent: April 19, 2022Assignee: Formlabs, Inc.Inventors: Yoav Reches, John E. Ouchterlony, Kat Ely, Lawrence Cheung