Patents by Inventor David D. Lu

David D. Lu 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: 20210376405
    Abstract: A composite thermal barrier material for use in electric and hybrid vehicle battery packs is described herein. The composite material comprises a porous core layer, a pair of flame retardant layers disposed on either side of the porous core layer, and at least one radiant barrier layer disposed between the porous core layer and one of the pair of flame retardant layers. In some exemplary embodiments, the porous core layer is a thermally expandable layer.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 2, 2021
    Inventors: Rhesa M. Browning, Jennifer K. Pratt, Stephen D. Daniell, David D. Lu, Mitchell T. Huang, Wei Zhou, Lei Guo
  • Patent number: 10654078
    Abstract: A method of removing an unwanted constituent from a siliceous surface in which the method includes contacting the siliceous surface and the unwanted constituent with a multi-functional composition that includes water, a hydrophilic silane, and a surfactant, and drying the surface.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 19, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Justin A. Riddle, Terry R. Hobbs, David D. Lu, Andrew S. D'Souza, Naiyong Jing, James P. Gardner, Jr., Yifan Zang, Zachary J. Malmberg, Milind B Sabade
  • Publication number: 20180126426
    Abstract: A method of removing an unwanted constituent from a siliceous surface in which the method includes contacting the siliceous surface and the unwanted constituent with a multi-functional composition that includes water, a hydrophilic silane, and a surfactant, and drying the surface.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Justin A. Riddle, Terry R. Hobbs, David D. Lu, Andrew S. D'Souza, Naiyong Jing, James P. Gardner, JR., Yifan Zang, Zachary J. Malmberg, Milind B Sabade
  • Patent number: 9895722
    Abstract: A method of removing an unwanted constituent from a siliceous surface in which the method includes contacting the siliceous surface and the unwanted constituent with a multi-functional composition that includes water, a hydrophilic silane, and a surfactant, and drying the surface.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: February 20, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Justin A. Riddle, Terry R. Hobbs, David D. Lu, Andrew S. D'Souza, Naiyong Jing, James P. Gardner, Jr., Yifan Zhang, Zachary J. Malmberg, Milind B. Sabade
  • Publication number: 20140060583
    Abstract: A method of removing an unwanted constituent from a siliceous surface in which the method includes contacting the siliceous surface and the unwanted constituent with a multi-functional composition that includes water, a hydrophilic silane, and a surfactant, and drying the surface.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Justin A. Riddle, Terry R. Hobbs, David D. Lu, Andrew S. D'Souza, Naiyong Jing, James P. Gardner, JR.
  • Patent number: 7758964
    Abstract: A flame-resistant electrical circuit covercoat composition includes a phosphinate and a urethane solder mask. The composition can be used as a covercoat for flexible circuits.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 20, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: David D. Lu, Eumi Pyun
  • Patent number: 7189479
    Abstract: A phototool having a fluorinated phosph(on)ate coating and methods of using the phototool.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: March 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: David D. Lu, Mark J. Pellerite, Richard M. Flynn
  • Patent number: 6177357
    Abstract: A process for making flexible circuits wherein the etching of a polymeric film is accomplished by dissolving portions thereof with concentrated aqueous base using a UV-curable 100% active liquid photoresist as a mask, comprising the steps of laminating the resist on a polymeric film, exposing a pattern into the resist, developing the resist with a dilute aqueous solution until desired image is obtained, etching portions of the polymeric film not covered by the crosslinked resist with a concentrated base at a temperature of from about 50° C. to about 120° C., and then stripping the resist off the polymeric film.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 23, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: David D. Lu
  • Patent number: 5109097
    Abstract: Normally solid organic solvent-soluble thermoplastic, polyethylenically-unsaturated polyurethane polymers having pendent cardo (cyclic) groups are disclosed. These polymers can be coated to provide coatings that can be worked (sanded) and that under the influence of activating energy, polymerize to coatings which can have excellent solvent and abrasion resistance.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: April 28, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Klun, David D. Lu, Aida F. Robbins
  • Patent number: 4855184
    Abstract: Normally solid, organic solvent-soluble, thermoplastic, polyethylenically-unsaturated, cellulosic polyurethane polymers are provided. These cellulosic polyurethane polymers comprise one or more cellulose ether or ester segments, one or more alkylene moieties having at least two carbon atoms and which can be substituted or interrupted by ether oxygen atoms, ester groups, or phenylene groups, two or more residues of diisocyanates, the segments, moieties, and residues being linked together by linking groups with the proviso that said alkylene moieties contain sufficient ethylenic unsaturation that said polymer can be crosslinked to a solvent-insoluble state.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: August 8, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Klun, David D. Lu, Aida F. Robbins
  • Patent number: D1026281
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: May 7, 2024
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Alexsandra M. Bowers, James Siminoff, Mark D. Siminoff, David Brett Levine, Michael V. Recker, Ryan David Hruska, Wen-Yo Lu, Maya Winfield, Christopher Loew