Patents by Inventor Arun Prasad

Arun Prasad 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: 20080232998
    Abstract: A non-magnetic cobalt based “noble” metal dental alloy is provided. The alloy generally contains at least 25 wt. % palladium, from 15 to 30 wt. % chromium and a balance of cobalt, where to ensure the alloy is non-magnetic the concentration of chromium in the alloy is at least 20 wt. %, or if the concentration of chromium is less than 20 wt. % the combined concentration of chromium, molybdenum, tungsten, niobium, tantalum vanadium and rhenium is greater than 20 wt. %.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 25, 2008
    Inventors: Arun Prasad, Paul J. Cascone
  • Publication number: 20080228771
    Abstract: A complete document management system is disclosed. Accordingly, systems and methods for managing data associated with a data storage component coupled to multiple computers over a network are disclosed. Systems and methods for managing data associated with a data storage component coupled to multiple computers over a network are further disclosed. Additionally, systems and methods for accessing documents available through a network, wherein the documents are stored on one or more data storage devices coupled to the network, are disclosed.
    Type: Application
    Filed: October 31, 2007
    Publication date: September 18, 2008
    Applicant: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Srinivas Kavuri, Rajiv Kottomtharayil, Arun Prasad Amarendran, Brian Brockway, Marcus S. Muller, Andreas May
  • Publication number: 20080108015
    Abstract: Dental restorations are manufactured herein wherein a veneer is applied to a dental substructure and the adherence strength of the veneer to the dental substructure is very high. The veneer is adhered to the dental substructure by applying one or more corona of plasma treatments to the surface of the dental substructure and thereafter applying the veneer to tie dental substructure. The surface of the dental substructure is modified by the corona or plasma process to create a highly adherent surface for the application of the veneer thereto.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 8, 2008
    Inventors: AJIT KARMAKER, Arun Prasad
  • Patent number: 7331789
    Abstract: Dental posts and obturators are manufactured herein having a filling material applied to the apical end of the post and obturator such that the adherence strength between the filling material and the post or obturator is very high. The filling material is adhered to the post and obturator by applying one or more corona or plasma treatments to the surface of the post and obturator and thereafter applying the filling material to the surface-treated post and obturator. The surfaces of the post and obturator are modified by the corona or plasma treatments to create a highly adherent surface for the application of the filling material thereto. Dental restorations are manufactured herein wherein a veneer is applied to a dental substructure and the adherence strength of the veneer to the dental substructure is very high.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: February 19, 2008
    Assignee: Pentron Clinical Technologies, LLC
    Inventors: Ajit Karmaker, Arun Prasad
  • Patent number: 7252508
    Abstract: An endodontic obturator comprising a shaft section and a filler section fabricated of the same material and formed as a single unit. A handle section may be included and may be formed integrally with the shaft section and filler section as a single unit, or may be fabricated separately and attached to the single unit containing the shaft section and the filler section. An endodontic post is provided having a post section and a filler section fabricated of the same matrix material to provide a cohesive bond between the two sections.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: August 7, 2007
    Assignee: Pentron Clinical Technologies, LLC
    Inventors: Ajit Karmaker, Arun Prasad
  • Patent number: 7162496
    Abstract: A system and method for operating a storage library. The system comprises a management server, a media agent connected to the management server, a library connected to the media agent and a database connected to the management server. The management server controls the media agent to monitor for the addition or removal of a piece of media in the library. When the media agent determines that the piece of media has been added to the library or removed from the library, the media agent causes the library to read a media label stored as data on the piece of media, the media label including an identifier identifying the piece of media. When a backup or restore is performed, the system checks the media label to ensure that the correct media is being used. Inventory procedures are disclosed.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: January 9, 2007
    Assignee: CommVault Systems, Inc.
    Inventors: Arun Prasad Amarendran, Rajiv Kottomtharayil, Zahid Ilkal
  • Publication number: 20060208393
    Abstract: A formable fiber-reinforced composite having an inner core of fiber-reinforced composite surrounded by a sheath of fiber-reinforced composite material. The inner core of fiber-reinforced composite has a plurality of longitudinally extending fibers disposed in a resin matrix material and formed in the shape of a rod and the outer sheath has woven or braided fibers impregnated with a resin matrix material in the form of a sleeve. In a method of manufacturing the formable fiber-reinforced composite material herein a rod is provided or fabricated of longitudinally extending fibers disposed in a resin matrix material. The resin matrix material is cured to provide a solid rod. A sheath of woven fibers is placed around the rod. The rod with the sheath thereon is treated to remove the resin matrix material. Treatment may be in the form of heat or chemical solution. If a chemical solvent is used, the fibers may be additionally heated.
    Type: Application
    Filed: March 21, 2006
    Publication date: September 21, 2006
    Inventors: Ajit Karmaker, Arun Prasad
  • Publication number: 20050158693
    Abstract: A dental alloy that comprises little or no amounts of noble metals. The alloys herein are designed to be a substitute for gold alloys in the fabrication of prosthetic dental appliances employing porcelain to metal bonds. The alloys are based on a combination of iron and chromium with a lesser inclusion of other elements to provide a high yield strength and to provide a durable impact resistant bond with dental porcelain.
    Type: Application
    Filed: April 22, 2003
    Publication date: July 21, 2005
    Inventors: Arun Prasad, Nikhil Sarkar
  • Publication number: 20050127544
    Abstract: Lithium disilicate based glass-ceramics contain high strength ceramic components for use in the manufacture of dental products. The glass-ceramics have good pressability, i.e., the ability to be formed into dental products by heat-pressing using commercially available equipment. The strength of the dental articles is increased with the inclusion of the high strength ceramic components.
    Type: Application
    Filed: October 8, 2004
    Publication date: June 16, 2005
    Inventors: Dmitri Brodkin, Carlino Panzera, Paul Panzera, Arun Prasad, Ajit Karmaker, Elie Zammarieh, Gregg Daskalon, Martin Schulman
  • Publication number: 20050123881
    Abstract: A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 9, 2005
    Inventors: Ajit Karmaker, Arun Prasad
  • Patent number: 6872076
    Abstract: A dental restoration comprising a fiber reinforced composite framework and one or more of a randomly dispersed, fiber-filled veneer, a soft particulate filled composite veneer having a strain to failure greater than that of FRC framework and/or a brittle particulate filled composite veneer having a strain to failure value less than that of the FRC framework. The fiber filled veneer is advantageously placed beneath the framework, the soft veneer is advantageously pled where tensile stresses are expected to occur, while the brittle particulate filled veneer is placed where compressive stresses are expected to occur.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: March 29, 2005
    Assignee: Jeneric/Pentron Inc.
    Inventors: Ajit Karmaker, Arun Prasad, Gregg Daskalon
  • Publication number: 20050023710
    Abstract: Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article.
    Type: Application
    Filed: June 22, 2004
    Publication date: February 3, 2005
    Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant Day, Stefan Borenstein
  • Patent number: 6846181
    Abstract: Ready-to-use preshaped, prefabricated cured structural components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the structural components are fabricated of a fiber-reinforced composite material or a particulate-filled composite material comprising fibers or particulate filler impregnated with a polymeric matrix. The polymeric matrix is partially or fully cured to the point of sufficient hardness to provide a ready-to-use structural component for use in the fabrication of dental appliances such as orthodontic retainers, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, cylinders, and connectors.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 25, 2005
    Assignee: Pentron Corporation
    Inventors: Ajit Karmaker, Martin L. Schulman, Arun Prasad
  • Patent number: 6827576
    Abstract: A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: December 7, 2004
    Assignee: Pentron Laboratory Technologies, LLC
    Inventors: Ajit Karmaker, Arun Prasad
  • Publication number: 20040241614
    Abstract: CADCAM blocks are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. The blocks are fabricated of a fiber-reinforced composite material wherein the fibers may be randomly dispersed to provide blocks having isotropic properties. The polymeric matrix is partially or fully cured to the point of sufficient hardness to provide a ready-to-use structural component for use in the fabrication of dental appliances such as orthodontic retainers, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, retainers, cylinders, and connectors.
    Type: Application
    Filed: December 22, 2003
    Publication date: December 2, 2004
    Inventors: A. Jon Goldberg, Patrick T. Mather, Robert A. Weiss, Pichet Rojanapitayakorn, Ajit Karmaker, Arun Prasad
  • Publication number: 20040225634
    Abstract: A system and method for operating a storage library. The system comprises a management server, a media agent connected to the management server, a library connected to the media agent and a database connected to the management server. The management server controls the media agent to monitor for the addition or removal of a piece of media in the library. When the media agent determines that the piece of media has been added to the library or removed from the library, the media agent causes the library to read a media label stored as data on the piece of media, the media label including an identifier identifying the piece of media. When a backup or restore is performed, the system checks the media label to ensure that the correct media is being used. Inventory procedures are disclosed.
    Type: Application
    Filed: September 16, 2003
    Publication date: November 11, 2004
    Inventors: Arun Prasad, Rajiv Kottomtharayil, Zahid Ilkal
  • Publication number: 20040202985
    Abstract: Dental posts and obturators are manufactured herein having a filling material applied to the apical end of the post and obturator such that the adherence strength between the filling material and the post or obturator is very high. The filling material is adhered to the post and obturator by applying one or more corona or plasma treatments to the surface of the post and obturator and thereafter applying the filling material to the surface-treated post and obturator. The surfaces of the post and obturator are modified by the corona or plasma treatments to create a highly adherent surface for the application of the filling material thereto.
    Type: Application
    Filed: February 6, 2004
    Publication date: October 14, 2004
    Inventors: Ajit Karmaker, Arun Prasad
  • Publication number: 20040194175
    Abstract: The present invention relates to a new and distinct high essential oil variety of lemon grass (Cymbopogon flexuosus) named as ‘Nima’. Further the invention relates to the high content of the monoterpene citral in the essential oil. This novel variety ‘Nima’ of the lemon grass is a selection from the open pollinated seedlings of the seeds obtained from another Cymbopogon flexuosus variety OD 19 from the germplasm collection of CIMAP. This variety is propagated through vegetative means using the slips and stable for commercial cultivation.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: Raj Kishori Lal, Hari Om Misra, Jawahar Ram Sharma, Nilakshi Singh, Ajit Kumar Shasany, Ali Arif Naqvi, Janak Raj Bahl, Arun Prasad, Suman Preet Singh Khanuja
  • Patent number: 6756012
    Abstract: Chromium-cobalt alloys useful for use with high-expansion porcelains in the fabrication of prosthetic dental appliances. The alloys herein comprise cobalt, chromium and manganese as essential components; and include one or more of aluminum, indium, gallium, tin, and germanium; and may include one or more of iron, nickel, palladium and platinum. Optional components include gold, tantalum, niobium, molybdenum, tungsten, vanadium, iridium, ruthenium, rhenium, titanium, silicon, copper, zirconium, hafnium, boron, yttrium, and rare earths metals. The alloys herein are useful with high-expansion dental ceramics and porcelains.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 29, 2004
    Assignee: Jeneric/Pentron, Inc.
    Inventor: Arun Prasad
  • Patent number: PP16712
    Abstract: A new and distinct high essential oil variety of lemongrass (Cymbopogon flexuosus) is named ‘Nima’. Further, the invention relates to the high content of the monoterpene citral in the essential oil. This novel variety ‘Nima’ of lemongrass is a selection from the open pollinated seedlings of the seeds obtained from another Cymbopogon flexuosus variety OD 19 from the germ plasm collection of CIMAP. This variety is propagated through vegetative means using the slips and is stable for commercial cultivation.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: June 27, 2006
    Assignee: Council of Scientific & Industrial Research
    Inventors: Raj Kishori Lal, Hari Om Misra, Jawahar Ram Sharma, Nilakshi Singh, Ajit Kumar Shasany, Ali Arif Naqvi, Janak Raj Bahl, Arun Prasad, Suman Preet Singh Khanuja