1
Tapesh Yadav, Karl Pfaffenbach: Nano-dispersed powders and methods for their manufacture. NanoProducts Corporation, Stuart T Langley, Hogan & Hartson, November 25, 2003: US06652967 (133 worldwide citation)

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, preferabl ...


2
Tapesh Yadav, Karl Pfaffenbach: Nano-dispersed catalysts particles. Stuart T Langley, Hogan & Hartson, April 6, 2004: US06716525 (106 worldwide citation)

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.


3
Tapesh Yadav, Karl Pfaffenbach: Very high purity fine powders and methods to produce such powders. Tapesh Yadav, Stuart T Langley, Hogan & Hartson, May 27, 2003: US06569397 (102 worldwide citation)

A method of producing very high purity fine powders of oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys. The purity of powders produced by the method exceeds 99.9%, preferably 99.999%, more preferably 99.99999%, and most preferably 99.9999999%. Fine powders produced are of size ...


4
Tapesh Yadav, Karl Pfaffenbach: Methods for modifying the surface area of nanomaterials. NanoProducts Corporation, Stuart T Langley, Hogan & Hartson L, March 7, 2006: US07007872 (87 worldwide citation)

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.


5
Tapesh Yadav, Roger Dirstine, Karl Pfaffenbach: High purity fine metal powders and methods to produce such powder. NanoProducts Corporation, Stuart T Langley, Hogan & Hartson, September 7, 2004: US06786950 (86 worldwide citation)

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 surfact ...


6
Tapesh Yadav, Karl Pfaffenbach: Post-processed nanoscale powders and method for such post-processing. NanoProducts Corporation, Stuart T Langley Esq, Hogan & Hartson, December 21, 2004: US06832735 (83 worldwide citation)

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 na ...


7
Tapesh Yadav, Karl Pfaffenbach: Shape engineering of nanoparticles. NanoProducts Corporation, Foley & Lardner, February 20, 2007: US07178747 (75 worldwide citation)

Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.


8
Tapesh Yadav, Karl Pfaffenbach: Nano-engineered phosphors and related nanotechnology. NanoProducts Corporation, Stuart T Langley, Hogan & Hartson, April 27, 2004: US06726992 (21 worldwide citation)

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, c ...


9
Tapesh Yadav, Karl Pfaffenbach: High purity nanoscale metal oxide powders and methods to produce such powders. PPG Industries Ohio, Donald R Palladino, June 16, 2009: US07547431 (9 worldwide citation)

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 re ...


10
Tapesh Yadav, Karl Pfaffenbach: Surface functionalization of nanomaterials for improved processing into devices and products. PPG Industries Ohio, Donald R Palladino, February 22, 2011: US07892599 (4 worldwide citation)

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.



Click the thumbnails below to visualize the patent trend.