Patents by Inventor Joseph T. Lundquist

Joseph T. Lundquist 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: 10619132
    Abstract: The present invention provides constructs including a tubular biodegradable polyglycolic acid scaffold, wherein the scaffold may be coated with extracellular matrix proteins and substantially acellular. The constructs can be utilized as an arteriovenous graft, a coronary graft, a peripheral artery bypass conduit, or a urinary conduit. The present invention also provides methods of producing such constructs.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 14, 2020
    Assignee: Humacyte, Inc.
    Inventors: Shannon L. M. Dahl, Laura E. Niklason, Justin T. Strader, William E. Tente, Joseph J. Lundquist
  • Patent number: 7582636
    Abstract: The present invention relates to Gonadotropin Releasing Hormone (GnRH, also known as Luteinizing Hormone Releasing Hormone) receptor antagonists.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: September 1, 2009
    Assignee: Wyeth
    Inventors: Joseph T. Lundquist, IV, Jeffrey C. Pelletier, Matthew D. Vera
  • Patent number: 5389433
    Abstract: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a polysulfone polymer and a filler or polysulfone polymer and structure enhancing agent, said sheet product having a fibrous sheet embedded within said mixture and between the first and second major surfaces. The porosity of the sheet product is at least about 60 volume percent composed of pores such that the average pore diameter increases from each major surface toward the interior of the sheet product's thickness.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: February 14, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Victor S. C. Chang, Richard C. Hartwig, James K. Kung, Joseph T. Lundquist, Marc E. Parham, James A. Avtges, Anthony J. Laccetti
  • Patent number: 5389463
    Abstract: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a halogenated polyolefin polymer and a filler or a halogenated polyolefin polymer and surfactant/filler agent, said sheet product having a fibrous sheet embedded within said mixture and between the first and second major surfaces. The porosity of the sheet product is at least about 50 volume percent composed of pores such that the average pore diameter increases from each major surface towards the interior of the sheet product's thickness.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: February 14, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Victor S. Chang, Richard T. Giovannoni, Richard C. Hartwig, Joseph T. Lundquist, Christian B. Lundsager, Marc E. Parham, Anthony J. Laccetti
  • Patent number: 5362581
    Abstract: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a polycarbonate polymer and a filler or a polycarbonate and a structure enhancing agent, said sheet product having a porous sheet embedded within said mixture and between the first and second major surfaces. The porosity of the sheet product is at least about 50 volume percent composed of pores such that the nominal pore diameter increases incrementally from each major surface towards the interior central portion of the sheet product's thickness.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: November 8, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Victor S. Chang, Richard C. Hartwig, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti
  • Patent number: 5362582
    Abstract: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a polymer and a filler or a polymer and a structure enhancing agent and having a porous sheet embedded between the first and second major surface. The porosity of the sheet product is at least about 50 volume percent having a pore distribution such that the nominal pore diameter increases from each major surface towards the interior central portion of the sheet product's thickness.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: November 8, 1994
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Victor S. Chang, Richard C. Hartwig, Joseph T. Lundquist, Marc E. Parham, James K. Kung, James A. Avtges, Anthony J. Laccetti
  • Patent number: 5346788
    Abstract: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a thermoplastic polyurethane polymer having a high degree of hard segments with a filler or said polyurethane with a structure enhancing agent, said sheet product having a sheet embedded within said mixture and between the first and second major surfaces. The sheet product has porosity of at least about 50 volume percent composed of pores such that the nominal pore diameter increases from each major surface towards the interior, center of the sheet product's thickness.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: September 13, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Victor S. C. Chang, Richard C. Hartwig, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti
  • Patent number: 5294502
    Abstract: This invention is directed to solid electrolytes containing a solvent and, in particular, a solvent comprising certain substituted tetrahydrofurans, substituted 1,3-dioxolanes, substituted 1,4-dioxanes, and substituted tetrahydropyrans.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: March 15, 1994
    Assignee: Valence Technology, Inc.
    Inventors: Dale R. Shackle, Milton N. Golovin, Joseph T. Lundquist, Benjamin Chaloner-Gill
  • Patent number: 5264304
    Abstract: A sheet product useful as a battery separator in the form of a microporous base sheet having spaced T-shaped (cross-sectional) ribs extending from one surface of the base sheet.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: November 23, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Eric D. Kragness, Joseph T. Lundquist
  • Patent number: 5022926
    Abstract: A method of removing iron contaminants in an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring and, further, a method of inhibiting calcium scale formation in the presence of iron contaminants by utilizing at least one dehydroxyaromatic compound in combination with calcium scale inhibitors.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: June 11, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert P. Kreh, Joseph T. Lundquist, Wayne L. Henry, John A. Kelly, Vincent R. Kuhn
  • Patent number: 4935205
    Abstract: A method of inhibiting corrosion of iron or iron-based alloys which are in contact with an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 19, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert P. Kreh, Joseph T. Lundquist, Wayne L. Henry
  • Patent number: 4789609
    Abstract: A sheet product useful as a battery separator which is formed from a cationic polymer membrane free of hydrolyzable groups and, preferably, is part of a multi-ply sheet product composed of at least one ply of the cationic membrane and at least one ply of a microporous polyolefin sheet.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: December 6, 1988
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Geneva Ambrose-Ritchey, Felek Jachimowicz, Joseph T. Lundquist
  • Patent number: 4731310
    Abstract: A polymer bonded sheet product suitable for use as a cathodic electrode in a non-aqueous battery system wherein the cathodic electrode is a microporous sheet composed of from 6-10 weight percent polyethylene having a molecular weight of 200,000 to 500,000, 90-94 weight percent of titanium disulfide particulate material and from 0 to 2 weight percent of a plasticizer for the polyethylene; the sheet having a void volume of from 15 to 25 percent.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: March 15, 1988
    Assignee: W. R. Grace & Co.
    Inventors: Menahem Anderman, Joseph T. Lundquist, Jr.
  • Patent number: 4731304
    Abstract: A multiply sheet product useful as a battery separator having at least two plies each in the form of a microporous sheet of predetermined length and breadth and a thickness of less than 10 mils wherein (a) at least one of said ply being a sheet capable of transforming to a substantially non-porous membrane at a temperature between about 80.degree. C. and 150.degree. C. while essentially maintaining its length and breadth dimensions and (b) at least one ply being a sheet capable of maintaining its dimensions and porosity at temperatures from ambient to at least about 10.degree. C. greater than the transformation temperature of sheet (a).
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: March 15, 1988
    Assignee: W. R. Grace & Co.
    Inventors: Joseph T. Lundquist, Christian B. Lundsager, Nigel I. Palmer, Howard J. Troffkin
  • Patent number: 4654281
    Abstract: A cathodic electrode product comprising a substantially unitary, microporous structure wherein each major surface of said structure is a composition of an inert filler in a polyolefin matrix, the inner core of said structure is a composition of from 70-98 weight percent of electrochemically active and electrically conductive particulate material, from 2-30 weight percent polyethylene and from 0 to 5 weight percent polyethylene plasticizer and a current collector in contact and extend from the inner core composition.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: March 31, 1987
    Assignee: W. R. Grace & Co.
    Inventors: Menahem Anderman, Joseph T. Lundquist
  • Patent number: 4650730
    Abstract: A multiply sheet product useful as a battery separator having at least two plies each in the form of a microporous sheet of predetermined length and breadth and a thickness of less than 10 mils wherein (a) at least one of said ply being a sheet capable of transforming to a substantially non-porous membrane at a temperature between about 80.degree. and 150.degree. C. while essentially maintaining its length and breadth dimensions and (b) at least one ply being a sheet capable of maintaining its dimensions and porosity at temperatures from ambient to at least about 10.degree. C. greater than the transformation temperature of sheet (a).
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: March 17, 1987
    Assignee: W. R. Grace & Co.
    Inventors: Joseph T. Lundquist, Christian B. Lundsager, Nigel I. Palmer, Howard J. Troffkin
  • Patent number: 4434215
    Abstract: A composition suitable for use as a battery separator comprising a substantially homogeneous mixture of a copolymer of ethylene and acrylic acid having from 10 to 23 mole percent acrylic acid therein and a melt index of from about 0.1 to 5 in combination with a copolymer of ethylene and acrylic acid having at least 25 mole percent acrylic acid therein and having a melt index of at least about 10. The present invention is further directed to a process of forming a sheet product from the subject composition and the use of the formed product as a battery separator.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: February 28, 1984
    Assignee: W. R. Grace & Co.
    Inventors: Walter R. Wszolek, Joseph T. Lundquist, Jr.
  • Patent number: 4368922
    Abstract: Underground coal is mined by sinking a hole into the coal, passing a coal solvent to the coal, and recovering a coal solution and/or dispersion products from the resulting solution or suspension.
    Type: Grant
    Filed: December 2, 1980
    Date of Patent: January 18, 1983
    Assignee: W. R. Grace & Co.
    Inventors: Adley W. Hemphill, Joseph T. Lundquist, Jr., Carl V. McDaniel
  • Patent number: 4330602
    Abstract: A battery separator useful in alkaline battery systems, and a process of forming the same, is formed from a composition having 30-70% by weight synthetic pulp, 15-65% by weight alkali resistant inorganic filler, and 1-35% by weight of long fibers having lengths of between 1/4 and 1 inch. The long fibers may be polyester, polyacrylic, polyamide, polyolefin, or other staple fiber material. The process for forming the subject battery separator requires first forming a substantially uniform aqueous mixture of the subject composition, sequentially treating said composition with a combination of a cationic and an anionic agent, applying the treated composition to a standard paper-making apparatus at a grammage rate to cause the resultant dried sheet to have a thickness of less than about 10 mils, and forming a sheet product.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: May 18, 1982
    Assignee: W. R. Grace & Co.
    Inventors: Dennis D. O'Rell, Nguyen V. Hien, Joseph T. Lundquist, Jr., Christian B. Lundsager
  • Patent number: 4327164
    Abstract: A battery separator, and a method of forming the same, which exhibits good electrical conductivity and a high degree of inhibition to dendrite formation, is in the form of a thin sheet formed from a substantially uniform mixture of a thermoplastic rubber, a filler, a rubber modifier, and a processing aid.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: April 27, 1982
    Assignee: W. R. Grace & Co.
    Inventors: Stewart C. Feinberg, Christian B. Lundsager, Joseph T. Lundquist, Jr., Robert A. Balouskus