Patents Assigned to University of Massachusetts at Amherst
  • Publication number: 20230342348
    Abstract: A method for processing formulae includes encoding a formula by: training, with a server, a model by using a machine learning algorithm with a data set that includes a plurality of formulae; transforming, with a processor, a first formula into a tree format using the trained model; converting, with the processor, the tree format of the first formula into a plurality of lists; and encoding, with the processor, the plurality of lists into a fixed dimension vector by leveraging a stacked attention module; and generating one or more formula candidates by: obtaining, with the processor, input information; and generating, with the processor, one or more second formula candidates based on input information by using the stacked attention module with a tree beam search algorithm.
    Type: Application
    Filed: April 21, 2023
    Publication date: October 26, 2023
    Applicants: William Marsh Rice University, University of Massachusetts, Amherst
    Inventors: Zichao Wang, Shiting Lan, Richard G. Baraniuk
  • Patent number: 11498062
    Abstract: Methods and phosphorus-containing solid catalysts for catalyzing dehydration of cyclic ethers (e.g., furans, such as 2,5-dimethylfuran) and alcohols (e.g., ethanol and isopropanol). The alcohols and cyclic ethers may be derived from biomass. One example includes a tandem Diels-Alder cycloaddition and dehydration of biomass-derived 2,5-dimethyl-furan and ethylene to renewable p-xylene. The phosphorus-containing solid catalysts are also active and selective for dehydration of alcohols to alkenes.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 15, 2022
    Assignees: Regents of the University of Minnesota, University of Massachusetts Amherst, University of Delaware
    Inventors: Hong Je Cho, Wei Fan, Michael Tsapatsis, Paul J. Dauenhauer, Limin Ren, Raul Lobo
  • Publication number: 20150155538
    Abstract: An electrical insulation layer including microparticles and having a mesoporous structure; and a battery device including a cathode, an anode, an electrical insulation layer including microparticles and having a mesoporous structure, the electrical insulation layer being arranged between the anode and the cathode, and an ion conductive composition.
    Type: Application
    Filed: December 1, 2014
    Publication date: June 4, 2015
    Applicants: SEKISUI CHEMICAL CO., LTD., UNIVERSITY OF MASSACHUSETTS AMHERST
    Inventors: Yuying TANG, James WATKINS, Kenichi SHINMEI, Rasika DASANAYAKE ALUTHGE, Susumu KOIZUMI, Masashi KANOH
  • Publication number: 20120154206
    Abstract: A method for calibrating a phased-array antenna that involves transmitting a signal from a transmitting element, and sequentially receiving the transmitted signal at two receiving elements each spaced a first distance from the transmitting element. This step is then repeated one or more times, but transmitting from a different transmitting element in each repetition of the step, until each element being calibrated has received at least one transmission. Then, the first distance is changed to a second distance, and the steps are repeated one or more times to gather additional measurements. These measurements allow the determination from the received signals of two separate element mutual coupling ratios, one ratio for one subset of the elements being calibrated and the other for a second subset comprising the remaining elements being calibrated.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: University of Massachusetts Amherst
    Inventor: Rafael H. Medina Sanchez
  • Publication number: 20100023464
    Abstract: A method of parameter adaptation is used to modify the parameters of a model to improve model performance. The model separately estimates the contribution of each model parameter to the prediction error. It achieves this by transforming to the time-scale plane the vectors of output sensitivities with respect to model parameters and then identifying the regions within the time-scale plane at which the dynamic effect of individual model parameters is dominant on the output. The method then attributes the prediction error in these regions to the deviation of a single parameter from its true value as the basis of estimating individual parametric errors. The proposed Signature Isolation Method (PARSIM) then uses these estimates to adapt individual model parameters independently of the others, implementing, in effect, concurrent adaptation of individual parameters by the Newton-Raphson method in the time-scale plane.
    Type: Application
    Filed: July 24, 2008
    Publication date: January 28, 2010
    Applicant: University of Massachusetts Amherst
    Inventors: Kourosh Danai, James McCusker
  • Patent number: 7254633
    Abstract: A method for probabilistic packet marking in a network includes encoding Internet Protocol (IP) traceback information using b bits located in a packet header. The IP traceback information includes information on an IP traceback path back to a source system and a count of each type of packet. The method also includes forming the IP traceback path as packets are received by a destination system and completing the traceback path after a determined number of packets are received by the destination system.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: August 7, 2007
    Assignee: University of Massachusetts Amherst
    Inventor: Micah Adler
  • Patent number: 7085236
    Abstract: A method of regulating queuing delay in a network routing device independent of TCP loading is provided including receiving data packets, monitoring the data packets using token buckets and a Proportional and Integral (P+I) Active Queue Management (AQM) scheme, marking selected data packets falling within a profile, and adjusting flow preference of the monitored packets.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: August 1, 2006
    Assignee: University of Massachusetts, Amherst
    Inventors: Salomon Oldak, Wei-Bo Gong, Christopher V. Hollot, Don Towsley, Vishal Misra, Yossi Chait
  • Publication number: 20050108785
    Abstract: An improved method of nuclear transfer involving the transplantation of donor differentiated cell nuclei into enucleated oocytes of the same species as the donor cell is provided. The resultant nuclear transfer units are useful for multiplication of genotypes and transgenic genotypes by the production of fetuses and offspring, and for production of isogenic CICM cells, including human isogenic embryonic or stem cells. Production of genetically engineered or transgenic mammalian embryos, fetuses and offspring is facilitated by the present method since the differentiated cell source of the donor nuclei can be genetically modified and clonally propagated.
    Type: Application
    Filed: September 2, 2004
    Publication date: May 19, 2005
    Applicant: University of Massachusetts, Amherst Campus
    Inventors: Steven Stice, Jose Cibelli, James Robl, Paul Golueke, F. de Leon, D. Jerry
  • Publication number: 20020010949
    Abstract: An improved method of nuclear transfer involving the transplantation of donor differentiated cell nuclei into enucleated oocytes of the same species as the donor cell is provided. The resultant nuclear transfer units are useful for multiplication of genotypes and transgenic genotypes by the production of fetuses and offspring, and for production of isogenic CICM cells, including human isogenic embryonic or stem cells. Production of genetically engineered or transgenic mammalian embryos, fetuses and offspring is facilitated by the present method since the differentiated cell source of the donor nuclei can be genetically modified and clonally propagated.
    Type: Application
    Filed: April 10, 2001
    Publication date: January 24, 2002
    Applicant: University of Massachusetts, Amherst Campus
    Inventors: Steven L. Stice, Jose Cibelli, James Robl, Paul Golueke, F. Abel Ponce de Leon, D. Joseph Jerry
  • Patent number: 6235970
    Abstract: An improved method of nuclear transfer involving the transplantation of donor differentiated cell nuclei into enucleated oocytes of the same species as the donor cell is provided. The resultant nuclear transfer units are useful for multiplication of genotypes and transgenic genotypes by the production of fetuses and offspring, and for production of isogenic CICM cells, including human isogenic embryonic or stem cells. Production of genetically engineered or transgenic mammalian embryos, fetuses and offspring is facilitated by the present method since the differentiated cell source of the donor nuclei can be genetically modified and clonally propagated.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 22, 2001
    Assignee: University of Massachusetts, Amherst Campus
    Inventors: Steven L. Stice, Jose Cibelli, James Robl, Paul Golueke, F. Abel Ponce de Leon, D. Joseph Jerry
  • Patent number: 5389286
    Abstract: Random and block copolyesters which are liquid crystalline can be formed containing: (a) alkoxy-substituted para-phenylene terephthalate groups (i.e., derived from an analogously substituted hydroquinone reagent); and (b) alkylene-terephthalate groups (e.g., where the alkylene moiety contains 2 to 10 carbon atoms).
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: February 14, 1995
    Assignee: University of Massachusetts at Amherst
    Inventors: Ashok Tendolkar, Sridevi Narayan, Simon W. Kantor, Robert W. Lenz
  • Patent number: 5352767
    Abstract: Novel and previously contra-indicated alpha-olefin/carbon monoxide alternating copolymers are disclosed, together with polymerization methods and novel catalysts therefor.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: October 4, 1994
    Assignee: University of Massachusetts - Amherst
    Inventor: James C. W. Chien
  • Patent number: 5232778
    Abstract: Polyester fibers comprising a poly(alkylene) terephthalate matrix containing either random or block copolyesters which are liquid crystalline and which contain: (a) alkoxy-substituted para-phenylene terephthalate groups (i.e., derived from an analogously substituted hydroquinone reagent); and (b) alkylene-terephthalate groups (e.g., where the alkylene moiety contains 2 to 10 carbon atoms).
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: August 3, 1993
    Assignee: University of Massachusetts at Amherst
    Inventors: Richard J. Farris, Scott L. Joslin, Reiner Giesa
  • Patent number: 5157103
    Abstract: A copolymer of (1) a triad aromatic ester mesogenic unit containing a flexible polyalkylene spacer in the main chain thereof and (2) a polyester is disclosed.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: October 20, 1992
    Assignee: University of Massachusetts at Amherst
    Inventors: Simon W. Kantor, Robert W. Lenz, William J. Ward
  • Patent number: 5149757
    Abstract: Liquid crystalline polyesters of the aromatic triad type are formed by reaction of an alkylene bis(acetoxybenzoate) monomer and an aromatic dicarboxylic acid monomer with removal of acetic acid by-product therefrom.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: September 22, 1992
    Assignee: University of Massachusetts at Amherst
    Inventors: Simon W. Kantor, Robert W. Lenz, William J. Ward
  • Patent number: 5032669
    Abstract: Novel liquid crystal polyesters can be formed by reaction of bis(hydroxyalkoxy)biphenyls (including the novel bis(2-hydroxybutoxy)biphenyl) with terephthaloyl chloride.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: July 16, 1991
    Assignee: University of Massachusetts at Amherst
    Inventors: Simon W. Kantor, Robert W. Lenz, William J. Ward