Patents by Inventor Deepti GOPALAKRISHNAN

Deepti GOPALAKRISHNAN 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: 20200377679
    Abstract: Cross-linked polymer networks that are at least partially conjugated (e.g., phenylene vinylene polymer networks). The cross-linked polymer networks may be thin-films disposed on a substrate. The cross-linked polymer network may be covalently bonded to the substrate. The cross-linked polymer networks can be used, for example, in methods of detecting explosives (e.g., RDX (cyclotrimethylenetrinitramine)) and degradation products thereof.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: William R. DICHTEL, Deepti GOPALAKRISHNAN
  • Patent number: 10787551
    Abstract: Cross-linked polymer networks that are at least partially conjugated (e.g., phenylene vinylene polymer networks). The cross-linked polymer networks may be thin-films disposed on a substrate. The cross-linked polymer network may be covalently bonded to the substrate. The cross-linked polymer networks can be used, for example, in methods of detecting explosives (e.g., RDX (cyclotrimethylenetrinitramine)) and degradation products thereof.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 29, 2020
    Assignee: Cornell University
    Inventors: William R. Dichtel, Deepti Gopalakrishnan
  • Patent number: 10640686
    Abstract: Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen B. Roscoe, Deepti Gopalakrishnan, Stefan H. Gryska, George W. Griesgraber, Serkan Yurt, Duane D. Fansler, Kevin M. Lewandowski, Joon Chatterjee, Hae-Seung Harry Lee, Babu N. Gaddam
  • Publication number: 20200087547
    Abstract: Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 19, 2020
    Inventors: Stephen B. Roscoe, Deepti Gopalakrishnan, Stefan H. Gryska, George W. Griesgraber, Serkan Yurt, Duane D. Fansler, Kevin M. Lewandowski, Joon Chatterjee, Hae-Seung Harry Lee, Babu N. Gaddam
  • Publication number: 20200048392
    Abstract: Described is a polymerizable polymer composition compri a) a copolymerizable macromer, b) a (meth)acrylate ester monomer; and c) a polyfunctional type I photoinitiator.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 13, 2020
    Inventors: Stefan H. Gryska, Joon Chatterjee, Deepti Gopalakrishnan, George W. Griesgraber, Larry R. Krepski, Babu N. Gaddam
  • Publication number: 20160002421
    Abstract: Cross-linked polymer networks that are at least partially conjugated (e.g., phenylene vinylene polymer networks). The cross-linked polymer networks may be thin-films disposed on a substrate. The cross-linked polymer network may be covalently bonded to the substrate. The cross-linked polymer networks can be used, for example, in methods of detecting explosives (e.g., RDX (cyclotrimethylenetrinitramine)) and degradation products thereof.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 7, 2016
    Inventors: William R. DICHTEL, Deepti GOPALAKRISHNAN