Patents by Inventor Karl Pfaffenbach

Karl Pfaffenbach 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: 7892599
    Abstract: Methods for functionalizing the surface of nanomaterials to improve processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: February 22, 2011
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 7857244
    Abstract: Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 28, 2010
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20100230517
    Abstract: Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Application
    Filed: December 19, 2006
    Publication date: September 16, 2010
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 7547431
    Abstract: A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. The fine powders are envisioned to be useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: June 16, 2009
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 7178747
    Abstract: Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: February 20, 2007
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 7029507
    Abstract: Polishing powders of nanoscale dimensions are disclosed. Complex, multi-metal oxides are disclosed as constituents for chemical mechanical planarization, (CMP) as well as polishes for optical components, photonic devices, and other applications.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 18, 2006
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 7007872
    Abstract: Methods for changing the surface area of nanomaterials to improve properties, processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: March 7, 2006
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20050274447
    Abstract: Methods for slurry processing of nanomaterials into products. These methods are useful for organic, inorganic, metallic, alloy, ceramic, conducting polymer, non-conducting polymer, ion conducting, non-metallic, ceramic-ceramic composite, ceramic-polymer composite, ceramic-metal composite, metal-polymer composite, polymer-polymer composite, metal-metal composite, processed materials including paper and fibers, and natural materials such as mica, dielectrics, ferrites, stoichiometric, non-stoichiometric, or a combination of one or more of these. These methods also allow the fabrication of a functionally graded products.
    Type: Application
    Filed: July 26, 2004
    Publication date: December 15, 2005
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20050274833
    Abstract: Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Application
    Filed: July 26, 2004
    Publication date: December 15, 2005
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20050084608
    Abstract: Methods for modifying the surface characteristics of nanomaterials. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Application
    Filed: July 26, 2004
    Publication date: April 21, 2005
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20050063889
    Abstract: A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. The fine powders are envisioned to be useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.
    Type: Application
    Filed: December 10, 2002
    Publication date: March 24, 2005
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20050008557
    Abstract: Methods for functionalizing the surface of nanomaterials to improve processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Application
    Filed: July 27, 2004
    Publication date: January 13, 2005
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20040262435
    Abstract: Methods for changing the surface area of nanomaterials to improve properties, processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Application
    Filed: July 26, 2004
    Publication date: December 30, 2004
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 6832735
    Abstract: Post-processing methods for nanoparticles are disclosed. Methods for real time quality control of nanoscale powder manufacture are discussed. Uses of post-processed particles and consolidation methods are disclosed. Disclosed methods can enable commercial use of nanoscale powders in wide range of nanotechnology applications.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 21, 2004
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 6786950
    Abstract: Methods of producing metal and alloy fine powders having purity in excess of 99.9%, preferably 99.999%, more preferably 99.99999% are discussed. Fine submicron and nanoscale powders discussed include various shapes and forms including spheres, rods, whiskers, platelets and fibers. The use of surfactant, emulsifying agents and capping dispersants in powder synthesis are presented. Compositions taught include nickel, copper, iron, cobalt, silver, gold, platinum, palladium, tin, zirconium, aluminum, silicon, antimony, indium, titanium, tantalum, niobium, zinc and others from the periodic table. The fine powders are useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: September 7, 2004
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Roger Dirstine, Karl Pfaffenbach
  • Patent number: 6726992
    Abstract: Dispersed phosphor powders are disclosed that comprise nanoscale powders dispersed on coarser carrier powders. The composition of the dispersed fine powders may be oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys. Such powders are useful in various applications such as lamps, cathode ray tubes, field emission displays, plasma display panels, scintillators, X-ray detectors, IR detectors, UV detectors and laser detectors. Nano-dispersed phosphor powders can also be used in printing inks, or dispersed in plastics to prevent forgery and counterfeiting of currency, original works of art, passports, credit cards, bank checks, and other documents or products.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: April 27, 2004
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20040067355
    Abstract: Dispersed phosphor powders are disclosed that comprise nanoscale powders dispersed on coarser carrier powders. The composition of the dispersed fine powders may be oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys. Such powders are useful in various applications such as lamps, cathode ray tubes, field emission displays, plasma display panels, scintillators, X-ray detectors, IR detectors, UV detectors and laser detectors. Nano-dispersed phosphor powders can also be used in printing inks, or dispersed in plastics to prevent forgery and counterfeiting of currency, original works of art, passports, credit cards, bank checks, and other documents or products.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 8, 2004
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 6716525
    Abstract: Catalyst powders from nanoscale powders dispersed on coarser carrier powders. The composition of the dispersed fine powders may be oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys. Nano-dispersed submicron powders and nano-dispersed nanopowders are discussed.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: April 6, 2004
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Patent number: 6652967
    Abstract: Dispersed powders are disclosed that comprise fine nanoscale powders dispersed on coarser carrier powders. The composition of the dispersed fine powders may be oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys. Fine powders discussed are of sizes less than 100 microns, preferably less than 10 micron, more preferably less than 1 micron, and most preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. Such powders are useful in various applications such as catalysts, sensor, electronic, electrical, photonic, thermal, biomedical, piezo, magnetic, catalytic and electrochemical products.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 25, 2003
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, Karl Pfaffenbach
  • Publication number: 20030138368
    Abstract: A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. The fine powders are envisioned to be useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.
    Type: Application
    Filed: January 30, 2003
    Publication date: July 24, 2003
    Inventors: Tapesh Yadav, Karl Pfaffenbach