Patents by Inventor Bala Subramaniam

Bala Subramaniam 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: 20130240781
    Abstract: A method for increasing ozone concentration in a liquid can include: providing a gas having ozone; introducing the ozone-containing gas into a liquid, wherein the liquid and ozone combination has a temperature between about 0.8 and about 1.5 times the critical temperature of ozone; and increasing isothermally, the pressure of the ozone-containing gas above the liquid to about 0.3 to about 5 times the critical pressure of ozone so as to increase the ozone concentration in the liquid. The temperature is expressed in absolute units (Kelvin or Rankin). The method can be used for removing ozone from a gas or for purifying ozone. The liquid having a high ozone concentration can be used for ozonolysis of a substrate.
    Type: Application
    Filed: April 19, 2013
    Publication date: September 19, 2013
    Applicants: ARCHER DANIELS MIDLAND COMPANY, UNIVERSITY OF KANSAS
    Inventors: Bala SUBRAMANIAM, Daryle Busch, Andrew M. Danby, Thomas P. Binder
  • Patent number: 8425784
    Abstract: A method for increasing ozone concentration in a liquid can include: providing a gas having ozone; introducing the ozone-containing gas into a liquid, wherein the liquid and ozone combination has a temperature between about 0.8 and about 1.5 times the critical temperature of ozone; and increasing isothermally, the pressure of the ozone-containing gas above the liquid to about 0.3 to about 5 times the critical pressure of ozone so as to increase the ozone concentration in the liquid. The temperature is expressed in absolute units (Kelvin or Rankin). The method can be used for removing ozone from a gas or for purifying ozone. The liquid having a high ozone concentration can be used for ozonolysis of a substrate.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: April 23, 2013
    Assignees: University of Kansas, Archer Daniels Midland Company
    Inventors: Bala Subramaniam, Daryle Busch, Andrew M. Danby, Thomas P. Binder
  • Patent number: 8415511
    Abstract: A catalyst composition/system can include: a platinum catalyst metal (Pt) and/or rhenium catalyst metal (Re) on a first support; and a ruthenium catalyst metal (Ru) and/or rhenium catalyst metal (Re) on a second support or a platinum catalyst metal (Pt) and a ruthenium catalyst metal (Ru) and/or a rhenium catalyst metal (Re) on the same support. The Pt:Ru, Re:Pt and/or Re:Ru weight ratio can be between about 1:4 and about 4:1. The support can be alumina, carbon, silica, a zeolite, TiO2, ZrO2 or another suitable material. The first and second support can be on the same support structure or on different support structures. In one option, the first and second supports can be positioned such that the Pt and/or Re are capable of catalyzing a dehydrogenation and/or reforming reaction that produces hydrogen and the Ru and/or Re are capable of catalyzing a hydrogenolysis reaction.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: April 9, 2013
    Assignee: University of Kansas
    Inventors: Raghunath V. Chaudhari, Debdut S. Roy, Bala Subramaniam
  • Publication number: 20120255958
    Abstract: A conductive tank sump (100) and a dispenser sump (200) ensuring dissipation of electrostatic charges is disclosed. The sumps (100, 200) which are fully conductive through underground comprising (a) a sump wall made from fiberglass composition impregnated with conductive resin; (b) a ground block (16, 26) secured at the inner surface of the sumps (100, 200); (c) a plurality of pipes mounted through holes provided on the wall of the sumps (100, 200); (d) a plurality of grounding cables (116, 226) connecting the pipes and/or isolated conductors which needs to be earthed to the ground block (16, 26) on the wall of the tank sump/dispenser sump (100, 200). The present invention also relates to method of grounding of the tank sump/dispenser sump (100, 200).
    Type: Application
    Filed: December 15, 2009
    Publication date: October 11, 2012
    Applicant: GUARDIAN VENTURE OIL & GAS SDN BHD
    Inventors: Brian John Joseph, Kuhan Bala Subramaniam
  • Publication number: 20120253067
    Abstract: A process for producing lactic acid from glycerol using a reaction mixture comprising glycerol, a dehydrogenation catalyst (preferably a copper-based catalyst), an alkaline component, and water.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Inventors: Raghunath V. Chaudhari, Bala Subramaniam, Debdut S. Roy
  • Patent number: 8268048
    Abstract: Solid nanoparticulate transition metal complexes of Co(II) salen exhibit reversible oxygen absorption in a near stoichiometric manner. In contrast, no measurable oxygen binding was observed with unprocessed Co(II) salen.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: September 18, 2012
    Assignee: University of Kansas
    Inventors: Bala Subramaniam, Andrew S. Borovik, Chad A. Johnson
  • Patent number: 8252963
    Abstract: A catalyst composition can include: a support; a ruthenium catalyst (Ru) nanoparticle; and a linker linking the Ru nanoparticle to the support, wherein the linker is stable under hydrogenolysis conditions. In one aspect, the linker can include 3-aminopropyl trimethoxysilane (APTS) or derivatives thereof, such as those with amine functionality. In another aspect, the linker can include phosphotungstic acid (PTA) or other similar solid acid agents. In another aspect, the support can be selected from alumina, carbon, silica, a zeolite, TiO2, ZrO2, or another suitable material. A specific example of a support includes zeolite, such as a NaY zeolite. The Ru nanoparticle can have a size range from about 1 nm to about 25 nm, and can be obtained by reduction of Ru salts.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 28, 2012
    Assignee: University of Kansas
    Inventors: Raghunath V. Chaudhari, Debdut S. Roy, Bala Subramaniam
  • Patent number: 8221779
    Abstract: The present embodiment of the invention is generally directed to compositions comprising suspensions of poorly water-soluble compounds recrystallized in nanoparticulate sizes ranging from 0.1 to 5 ?m. In addition, the embodiment of the invention is directed to methods for preparation and administration of these compositions to a patient for prevention and treatment of disease states. In particular, the embodiment of the invention is directed to compositions comprising suspensions of poorly water-soluble compounds, such as antimitotics and antibiotics, in nanoparticulates and methods of prevention and treatment of chronic disease states, such as cancer, by intraperitoneal and intravenous administration of such compositions.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 17, 2012
    Inventors: Jeffrey M. Jonas, Roger A. Rajewski, Bala Subramaniam, Katherine F. Terranova
  • Patent number: 8115029
    Abstract: Oxidations of hydrocarbons, cycloalkanes and alkenes, arylalkanes, and a variety of other organic substrates are accomplished by cobalt-N-hydroxysuccinimide co-catalyzed reactions with dioxygen under unusually mild, near ambient conditions of temperature and pressure. The improved safety of the oxidation method and the high yields of product obtained make use of a unique combination of cobalt (II) complexes with N-hydroxysuccinimide. These autoxidation reactions do not have prolonged initiation times. Many of these reactions can be safely performed under normal chemical laboratory conditions and do not require specialized equipment or reagents.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: February 14, 2012
    Assignee: University of Kansas
    Inventors: Richard S. Givens, Chi Cheng Ma, Daryle H. Busch, Bala Subramaniam, Bhuma Rajagopalan
  • Publication number: 20120022287
    Abstract: Oxidation process can include: introducing small droplets of liquid reaction mixture having oxidizable reactant, catalyst, and solvent into a reaction zone containing oxygen and diluent gas; and oxidizing the reactant with the oxygen at a suitable reaction temperature and a suitable reaction pressure to produce an oxidized product. The liquid reaction mixture can have an aromatic feedstock having an oxidizable substituent as the oxidizable reactant. The oxidized product can include an aromatic compound having at least one carboxylic acid. For example, the aromatic feedstock can include a benzene ring having at least one oxidizable alkyl substituent, furan hetero-ring having at least one oxidizable alkyl substituent, a naphthalene poly-ring having at least one oxidizable alkyl substituent, derivatives thereof, and mixtures thereof.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 26, 2012
    Inventors: Bala Subramaniam, Daryle H. Busch, Fenghul Niu
  • Patent number: 8080677
    Abstract: A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene or ethylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent system comprising an organic water-miscible solvent (methanol). The system is pressurized using either the olefin itself or by adding an inert pressurizing gas (nitrogen) to increase the pressure between 230 and 700 psi at a temperature between 0.7 and 1.3 times the critical temperature of the olefin. The resulting increased solubility of the olefin in the organic solvent system increases the selectivity and yield of the desired epoxide (propylene oxide or ethylene oxide).
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: December 20, 2011
    Assignee: University of Kansas
    Inventors: Bala Subramaniam, Daryle H. Busch, Hyun-Jin Lee, Madhav Ghanta, Tie-Pan Shi
  • Publication number: 20110230620
    Abstract: A catalyst composition comprising a polymer functionalized with a ligand for binding a transition metal containing compound to form a transition metal complex, wherein said functionalized polymer has a number average molecular weight of about 5,000 to 30,000 g/mol and a polydispersity index of about 1.0 to 2.0. The catalyst is used in a hydroformylation reaction, preferably one in which the liquid phase has been volumetrically expanded with a compressed gas, is readily recyclable using nanofiltration.
    Type: Application
    Filed: November 16, 2009
    Publication date: September 22, 2011
    Inventors: Jon Tunge, Bala Subramaniam, Jing Fang, Ranjan Jana
  • Publication number: 20110028773
    Abstract: A process for the complete deoxygenation of an oxygenate, especially those from bio-oils comprises forming a reaction mixture comprising the oxygenate, molecular hydrogen, and a hydrodeoxygenation catalyst in a solvent. The reaction mixture is maintained at a temperature that is 0.7 to 1.3 times the solvent critical temperature in absolute temperature units (K). Complete deoxygenation occurs via a hydrodeoxygenation pathway and a decarbonylation pathway.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 3, 2011
    Inventors: Bala Subramaniam, Jackson W. Ford, Raghunath V. Chaudhari
  • Publication number: 20110004029
    Abstract: A catalyst composition/system can include: a platinum catalyst metal (Pt) and/or rhenium catalyst metal (Re) on a first support; and a ruthenium catalyst metal (Ru) and/or rhenium catalyst metal (Re) on a second support or a platinum catalyst metal (Pt) and a ruthenium catalyst metal (Ru) and/or a rhenium catalyst metal (Re) on the same support. The Pt:Ru, Re:Pt and/or Re:Ru weight ratio can be between about 1:4 and about 4:1. The support can be alumina, carbon, silica, a zeolite, TiO2, ZrO2 or another suitable material. The first and second support can be on the same support structure or on different support structures. In one option, the first and second supports can be positioned such that the Pt and/or Re are capable of catalyzing a dehydrogenation and/or reforming reaction that produces hydrogen and the Ru and/or Re are capable of catalyzing a hydrogenolysis reaction.
    Type: Application
    Filed: June 8, 2010
    Publication date: January 6, 2011
    Inventors: Raghunath V. Chaudhari, Debdut S. Roy, Bala Subramaniam
  • Publication number: 20100331599
    Abstract: An alkylation catalyst can include: a Brønsted acid ionic liquid; and a strong Brønsted acid that is not considered an ionic liquid. The Brønsted acid ionic liquid can be selected from the group consisting of [BMIm]HSO4, [MBSIm]HSO4, [MBSIm]OTf, [MPSIm]OTf, and [OMIm]HSO4 or the like. In one aspect, the strong Brønsted acid is selected from the group consisting of sulfuric acid, hydrochloric acid (HCl), hydrobromic acid (HBr), HF, hydrogen iodide (HI), phosphoric acid, trifluoromethanesulfonic (triflic) acid. In one aspect, the strong Brønsted acid is present at more than about 50 wt % of the composition; however, the Brønsted acid can vary from about 10 wt % to about 99 wt %, more preferably about 20 wt % to about 90 wt %, and most preferably about 40 wt % to about 80 wt %.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 30, 2010
    Inventors: Bala Subramaniam, Aaron Scurto, Shengwei Tang
  • Publication number: 20100317901
    Abstract: A catalyst composition can include: a support; a ruthenium catalyst (Ru) nanoparticle; and a linker linking the Ru nanoparticle to the support, wherein the linker is stable under hydrogenolysis conditions. In one aspect, the linker can include 3-aminopropyl trimethoxysilane (APTS) or derivatives thereof, such as those with amine functionality. In another aspect, the linker can include phosphotungstic acid (PTA) or other similar solid acid agents. In another aspect, the support can be selected from alumina, carbon, silica, a zeolite, TiO2, ZrO2, or another suitable material. A specific example of a support includes zeolite, such as a NaY zeolite. The Ru nanoparticle can have a size range from about 1 nm to about 25 nm, and can be obtained by reduction of Ru salts.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 16, 2010
    Inventors: Raghunath V. Chaudhari, Debdut S. Roy, Bala Subramaniam
  • Patent number: 7744923
    Abstract: Commercially feasible methods for lyophobic precipitation of liquid-dispersed or dissolved material (e.g., medicaments) are provided wherein a plurality of individual, open containers (22) each containing a quantity (84) of a solution or dispersion are treated within a common pressurizable chamber (12). In this process, desired near-supercritical or supercritical temperature and pressure conditions are established for a selected antisolvent gas such as carbon dioxide, and an ultrasonic device (14) is actuated to generate high energy ultrasonic waves in the chamber (12). This leads to intense mixing of the antisolvent with the liquid solution or dispersion within the containers (22), with consequent solvent removal and material precipitation.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: June 29, 2010
    Assignee: Crititech, Inc.
    Inventors: Roger A. Rajewski, Bala Subramaniam, Fenghui Niu
  • Publication number: 20100089236
    Abstract: Solid nanoparticulate transition metal complexes of Co(II) salen exhibit reversible oxygen absorption in a near stoichiometric manner. In contrast, no measurable oxygen binding was observed with unprocessed Co(II) salen.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 15, 2010
    Inventors: Bala Subramaniam, Andrew S. Borovik, Chad A. Johnson
  • Patent number: 7649101
    Abstract: A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent system comprising an organic water-miscible solvent (methanol); and adding a pressurizing gas (nitrogen) to increase the pressure, whereby olefin is further dissolved in organic solvent system to increase the selectivity and yield of the desired epoxide (propylene oxide).
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 19, 2010
    Assignee: University of Kansas
    Inventors: Daryle H. Busch, Bala Subramaniam, Hyun-Jin Lee, Tie-Pan Shi
  • Publication number: 20090197821
    Abstract: The present embodiment of the invention is generally directed to compositions comprising suspensions of poorly water-soluble compounds recrystallized in nanoparticulate sizes ranging from 0.1 to 5 ?m. In addition, the embodiment of the invention is directed to methods for preparation and administration of these compositions to a patient for prevention and treatment of disease states.
    Type: Application
    Filed: February 27, 2009
    Publication date: August 6, 2009
    Applicant: CRITITECH, INC.
    Inventors: Jeffrey M. Jonas, Roger A. Rajewski, Bala Subramaniam, Katherine F. Terranova