Patents by Inventor Lev Bromberg

Lev Bromberg 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: 7604705
    Abstract: Methods for the separation of targeted components from gun propellant formulations. In particular, the methods separate targeted components in a usable/useful form. Preferred methods are directed to the separation of nitrocellulose, nitroguanidine and/or nitroglycerine from a formulation containing one or more of these components.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: October 20, 2009
    Assignee: Foster-Miller, Inc.
    Inventors: Nese Orbey, B. Michael Cushman, Marina Temchenko, Lev Bromberg
  • Publication number: 20080003288
    Abstract: A responsive microgel is provided which responds volumetrically and reversibly to a change in one or more aqueous conditions selected from the group consisting of (temperature, pH, and ionic conditions) comprised of an ionizable network of covalently cross-linked homopolymeric ionizable monomers wherein the ionizable network is covalently attached to an amphiphilic copolymer to form a plurality of ‘dangling chains’ and wherein the ‘dangling chains’ of amphiphilic copolymer form immobile micelle-like aggregates in aqueous solution. A responsive microgel is further provided that comprises at least one therapeutic entity and delivers a substantially linear and sustained release of the therapeutic entity under physiological conditions.
    Type: Application
    Filed: April 11, 2007
    Publication date: January 3, 2008
    Applicant: Supratek Pharma Inc.
    Inventors: Lev Bromberg, Marina Temchenko
  • Patent number: 7273891
    Abstract: A graft reverse thermal hydrogel which does not show substantial loss of complex viscosity at and up to 20 degrees above the transition temperature upon autoclaving or aging. Other embodiments include the graft reverse thermal copolymer which can be dissolved in water to produce the graft reverse thermal hydrogel, a process for manufacturing the graft reverse thermal copolymer and hydrogel and applications for the stable graft reverse thermal hydrogel.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: September 25, 2007
    Assignee: B L Partnership
    Inventors: Lev Bromberg, Elmer C. Lupton
  • Patent number: 7008628
    Abstract: A pharmaceutic composition includes a pharmaceutically acceptable carrier, comprising a reverse thermally viscosifying polymer. The polymer includes a linear block copolymer, wherein at least one block comprises a poloxamer; and at least one block comprises a biocompatible polymer or oligomer, in an aqueous medium. The composition also includes an active agent which imparts a pharmaceutic or cosmetic effect. The composition viscosifies in response to an environmental stimulus. The composition is suitable for administration of the pharmaceutical agent across dermal, otic, rectal, vaginal, ophthalmic, esophageal and nasal mucosal membranes.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 7, 2006
    Assignee: Madasa LLC
    Inventors: Eyal S. Ron, Lev Bromberg, Marina Temchenko
  • Publication number: 20060040388
    Abstract: One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated polymer or an organic hydrocarbon bilayer, wherein the two layers are chemically bonded to each other. The stabilized particles are further non-toxic and provide useful enhancements in bioprocesses. Another aspect of the present invention relates to compositions comprising an oxygen-dissolving fluid vehicle and surface modified, nanometer-sized magnetic particles. The inventive compositions have utility in a wide range of applications, but are particularly suitable for use as recyclable oxygen carriers, separation and purification vehicles, and bioprocessing media, including fermentation processes.
    Type: Application
    Filed: December 20, 2004
    Publication date: February 23, 2006
    Inventors: Lev Bromberg, T. Hatton, I. Wang, Jin Yin, Bernat Olle
  • Patent number: 7001934
    Abstract: Inkjet ink systems are disclosed which comprise a) a liquid vehicle, b) a colorant, and c) a gelling agent. The gelling agent may be incorporated either into the liquid vehicle, into a second jettable composition, or onto a substrate. The gelling agent may also be attached to the colorant. In addition, several methods of generating an image are also described which utilize compositions comprising a gelling agent.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: February 21, 2006
    Assignee: Cabot Coroporation
    Inventor: Lev Bromberg
  • Publication number: 20040131838
    Abstract: A temperature regulation and flow control device is described. A web of material, e.g., for a wet suit, has a layer of gel particles embedded in a flow control layer, preferably a foam matrix. A water permeable neoprene layer covers the flow control layer and allows water to enter the suit. The flow of water in the suit is regulated by the expansion and contraction of the gel as it undergoes a volume phase transition in response to a change in temperature. When the diver is in cold water, the cold water enters the foam substrate and the gel expands, causing permeability (i.e., flow) to decrease. Flow is restricted in response to cooling, and the foam substrate expands and tightens the fit of the wet suit. In warmer water, an opposite effect occurs, whereby the gel contracts and flow increases. The gel contracts relaxing the fit of the suit. A gel having a particular volume phase transition critical temperature is selected in order to maintain body temperature in a particular environment.
    Type: Application
    Filed: December 8, 2003
    Publication date: July 8, 2004
    Applicant: Mide Technology Corporation
    Inventors: Marco Serra, Lev Bromberg, Jaco van Reenen Pretorius, Brett P. Masters
  • Patent number: 6698510
    Abstract: A temperature regulation and flow control device is described. A web of material, e.g., for a wet suit, has a layer of gel particles embedded in a flow control layer, preferably a foam matrix. A water permeable neoprene layer covers the flow control layer and allows water to enter the suit. The flow of water in the suit is regulated by the expansion and contraction of the gel as it undergoes a volume phase transition in response to a change in temperature. When the diver is in cold water, the cold water enters the foam substrate and the gel expands, causing permeability (i.e., flow) to decrease. Flow is restricted in response to cooling, and the foam substrate expands and tightens the fit of the wet suit. In warmer water, an opposite effect occurs, whereby the gel contracts and flow increases. The gel contracts relaxing the fit of the suit. A gel having a particular volume phase transition critical temperature is selected in order to maintain body temperature in a particular environment.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: March 2, 2004
    Assignee: Mide Technology Corporation
    Inventors: Marco Serra, Lev Bromberg, Jaco van Reenen Pretorius, Brett P. Masters
  • Publication number: 20030153649
    Abstract: Inkjet ink systems are disclosed which comprise a) a liquid vehicle, b) a colorant, and c) a gelling agent. The gelling agent may be incorporated either into the liquid vehicle, into a second jettable composition, or onto a substrate. The gelling agent may also be attached to the colorant. In addition, several methods of generating an image are also described which utilize compositions comprising a gelling agent.
    Type: Application
    Filed: January 24, 2002
    Publication date: August 14, 2003
    Inventor: Lev Bromberg
  • Publication number: 20030092776
    Abstract: A pharmaceutic composition includes a pharmaceutically acceptable carrier, comprising a reverse thermally viscosifying polymer. The polymer includes a linear block copolymer, wherein at least one block comprises a poloxamer; and at least one block comprises a biocompatible polymer or oligomer, in an aqueous medium. The composition also includes an active agent which imparts a pharmaceutic or cosmetic effect. The composition viscosifies in response to an environmental stimulus. The composition is suitable for administration of the pharmaceutical agent across dermal, otic, rectal, vaginal, ophthalmic, esophageal and nasal mucosal membranes.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 15, 2003
    Inventors: Eyal S. Ron, Lev Bromberg, Marina Temchenko
  • Patent number: 6552555
    Abstract: An integrated circuit testing apparatus includes a probe card and a probe unit. The probe unit includes a plurality of conductive elastic bumps and a plurality of conductors positioned to conduct signals from the bumps to the probe card. The testing apparatus can further includes a substrate disposed between the probe card and the probe unit, and a flexible member disposed adjacent the substrate.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: April 22, 2003
    Assignee: Custom One Design, Inc.
    Inventors: Peter R. Nuytkens, Lev Bromberg, Patrick G. Dannen, Andrew D. Miller, Ahmed Mitwalli, Robert A. Most
  • Publication number: 20030010486
    Abstract: A temperature regulation and flow control device is described. A web of material, e.g., for a wet suit, has a layer of gel particles embedded in a flow control layer, preferably a foam matrix. A water permeable neoprene layer covers the flow control layer and allows water to enter the suit. The flow of water in the suit is regulated by the expansion and contraction of the gel as it undergoes a volume phase transition in response to a change in temperature. When the diver is in cold water, the cold water enters the foam substrate and the gel expands, causing permeability (i.e., flow) to decrease. Flow is restricted in response to cooling, and the foam substrate expands and tightens the fit of the wet suit. In warmer water, an opposite effect occurs, whereby the gel contracts and flow increases. The gel contracts relaxing the fit of the suit. A gel having a particular volume phase transition critical temperature is selected in order to maintain body temperature in a particular environment.
    Type: Application
    Filed: April 24, 2001
    Publication date: January 16, 2003
    Applicant: Mide Technology Corporation
    Inventors: Marco Serra, Lev Bromberg, Jaco van Reenen Pretorius, Brett P. Masters
  • Patent number: 6316011
    Abstract: A pharmaceutic composition includes a pharmaceutically acceptable carrier, comprising a reverse thermally viscosifying polymer. The polymer includes a linear block copolymer, wherein at least one block comprises a poloxamer; and at least one block comprises a biocompatible polymer or oligomer, in an aqueous medium. The composition also includes an active agent which imparts a pharmaceutic or cosmetic effect. The composition viscosities in response to an environmental stimulus. The composition is suitable for administration of the pharmaceutical agent across dermal, otic, rectal, vaginal, ophthalmic, esophageal and nasal mucosal membranes.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: November 13, 2001
    Assignee: Madash, LLC
    Inventors: Eyal S. Ron, Lev Bromberg, Marina Temchenko
  • Patent number: 6153669
    Abstract: The materials include non-polyampholite crosslinked polymers and gels based on a polymer which in uncrosslinked form is substantially soluble in ionic fluids and substantially insoluble in water. The materials change their state of hydration in response to an environmental trigger. The disclosed materials are useful as drilling, completion or workover fluids in wells such as hydrocarbon producing wells. According to the disclosed method, crosslinked polymers or gels are introduced into a stratum, blocking or bridging the pores of the stratum. Thereafter, an environmental condition is changed to cause the hydrated material to become less hydrated to unblock the pores allowing production from the well.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: November 28, 2000
    Assignee: Baroid Drilling Fluids, Inc.
    Inventors: David Diggs, Marie Kearney, M. J. Timm, E. C. Lupton, Lev Bromberg, Mara Stein, Barry Hand, Michael Orkisz
  • Patent number: 6110876
    Abstract: The materials include non-polyampholite crosslinked polymers and gels based on a polymer which in uncrosslinked form is substantially soluble in ionic fluids and substantially insoluble in water. The materials change their state of hydration in response to an environmental trigger. The disclosed materials are useful as drilling, completion or workover fluids in wells such as hydrocarbon producing wells. According to the disclosed method, crosslinked polymers or gels are introduced into a stratum, blocking or bridging the pores of the stratum. Thereafter, an environmental condition is changed to cause the hydrated material to become less hydrated to unblock the pores allowing production from the well.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: August 29, 2000
    Assignee: Baroid Drilling Fluids, Inc.
    Inventors: David Diggs, Marie Kearney, M. J. Timm, E. C. Lupton, Lev Bromberg, Mara Stein, Barry Hand, Michael Orkisz
  • Patent number: 6013698
    Abstract: Methods and compositions for encapsulated polymeric gels swollen with nonaqueous reactive materials are provided. The methods include gel synthesis, swelling of a gel precursor with a first nonaqueous reactive material, and encapsulation of the swollen gel with a second nonaqueous reactive material. Gels precursors may be synthesized from crosslinking polymers, or alternatively, may be formed by crosslinking and polymerizing a monomer starting material. An accelerator may be utilized to facilitate swelling of the gel precursor with the first nonaqueous reactive material. Foams and composites may also be swollen with the first nonaqueous reactive material. The swollen gel is then contacted with a second nonaqueous reactive material such that an encapsulation layer is formed thereby. The encapsulated gels may be stored for subsequent use.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: January 11, 2000
    Assignee: MedLogic Global Corporation
    Inventors: E. C. Lupton, Xiaohong Yu, Lev Bromberg, Barry Joseph Hand
  • Patent number: 5939485
    Abstract: A responsive polymer network exhibiting the property of reversible gelation in response to a change in an environmental stimulus is provided. The aqueous solution of the network polymer, comprises about 0.01 to 20 wt % by weight of a responsive component and about 0.01 to 20 wt % by weight of a structural component capable of supporting and interacting with the responsive component. The aqueous composition exhibits at least a five-fold increase in viscosity upon gelation. The gelation may be triggered by a change in an environmental stimulus, such as temperature, pH and ionic strength.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: August 17, 1999
    Assignee: MedLogic Global Corporation
    Inventors: Lev Bromberg, Elmer Cornelius (E.C.) Lupton, Matthew E. Schiller, Mary Jo (M.J.) Timm, George McKinney
  • Patent number: 5932285
    Abstract: Methods and compositions for encapsulated polymeric gels swollen with nonaqueous reactive materials are provided. The methods include gel synthesis, swelling of a gel precursor with a first nonaqueous reactive material, and encapsulation of the swollen gel with a second nonaqueous reactive material. Gels precursors may be synthesized from crosslinking polymers, or alternatively, may be formed by crosslinking and polymerizing a monomer starting material. An accelerator may be utilized to facilitate swelling of the gel precursor with the first nonaqueous reactive material. Foams and composites may also be swollen with the first nonaqueous reactive material. The swollen gel is then contacted with a second nonaqueous reactive material such that an encapsulation layer is formed thereby. The encapsulated gels may be stored for subsequent use.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: August 3, 1999
    Assignee: MedLogic Global Corporation
    Inventors: E. C. Lupton, Xiaohong Yu, Lev Bromberg, Barry Joseph Hand
  • Patent number: 5888943
    Abstract: The materials include non-polyampholite crosslinked polymers and gels based on a polymer which in uncrosslinked form is substantially soluble in ionic fluids and substantially insoluble in water. The materials change their state of hydration in response to an environmental trigger. The disclosed materials are useful as drilling, completion or workover fluids in wells such as hydrocarbon producing wells. According to the disclosed method, crosslinked polymers or gels are introduced into a stratum, blocking or bridging the pores of the stratum. Thereafter, an environmental condition is changed to cause the hydrated material to become less hydrated to unblock the pores allowing production from the well.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: March 30, 1999
    Assignee: Baroid Drilling Fluids, Inc.
    Inventors: David Diggs, Marie Kearney, M. J. Timm, E. C. Lupton, Lev Bromberg, Mara Stein, Barry Hand, Michael Orkisz
  • Patent number: 5849412
    Abstract: Methods and compositions for encapsulated polymeric gels swollen with nonaqueous reactive materials are provided. The methods include gel synthesis, swelling of a gel precursor with a first nonaqueous reactive material, and encapsulation of the swollen gel with a second nonaqueous reactive material. Gels precursors may be synthesized from crosslinking polymers, or alternatively, may be formed by crosslinking and polymerizing a monomer starting material. An accelerator may be utilized to facilitate swelling of the gel precursor with the first nonaqueous reactive material. Foams and composites may also be swollen with the first nonaqueous reactive material. The swollen gel is then contacted with a second nonaqueous reactive material such that an encapsulation layer is formed thereby. The encapsulated gels may be stored for subsequent use.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 15, 1998
    Assignee: MedLogic Global Corporation
    Inventors: Lev Bromberg, Elmer C. Lupton, Jr., Barry Joseph Hand