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Siddhartha Bhowmik

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  • Corvallis, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Print head slot ribs
    • Patent number 8,888,252
    • Issue date Nov 18, 2014
    • Hewlett-Packard Development Company, L.P.
    • Siddhartha Bhowmik
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print head
    • Patent number 8,714,710
    • Issue date May 6, 2014
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Protective coating for print head feed slots
    • Patent number 8,585,180
    • Issue date Nov 19, 2013
    • Hewlett-Packard Development Company, L.P.
    • Siddhartha Bhowmik
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Manufacture of a print head
    • Patent number 8,573,740
    • Issue date Nov 5, 2013
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing device
    • Patent number 8,333,459
    • Issue date Dec 18, 2012
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print head die slot ribs
    • Patent number 8,262,204
    • Issue date Sep 11, 2012
    • Hewlett-Packard Development Company, L.P.
    • David M. Braun
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Fluid ejection cartridge and method
    • Patent number 8,240,828
    • Issue date Aug 14, 2012
    • Hewlett-Packard Development Company, L.P.
    • Alok Sharan
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Formation of a slot in a silicon substrate
    • Patent number 7,855,151
    • Issue date Dec 21, 2010
    • Hewlett-Packard Development Company, L.P.
    • Swaroop K. Kommera
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Grant

    Formation of silicon nitride layer on back side of substrate
    • Patent number 7,691,746
    • Issue date Apr 6, 2010
    • Hewlett-Packard Development Company, L.P.
    • Siddhartha Bhowmik
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Grant

    Substrates having features formed therein and methods of forming
    • Patent number 6,930,055
    • Issue date Aug 16, 2005
    • Hewlett-Packard Development Company, L.P.
    • Siddhartha Bhowmik
    • B81 - MICRO-STRUCTURAL TECHNOLOGY

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD OF FORMING SUBSTRATE FOR FLUID EJECTION DEVICE
    • Publication number 20130256260
    • Publication date Oct 3, 2013
    • Siddhartha Bhowmik
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Print Head
    • Publication number 20130033548
    • Publication date Feb 7, 2013
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Manufacture of a Print Head
    • Publication number 20130027471
    • Publication date Jan 31, 2013
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PROTECTIVE COATING FOR PRINT HEAD FEED SLOTS
    • Publication number 20120139997
    • Publication date Jun 7, 2012
    • Siddhartha Bhowmik
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PRINT HEAD SLOT RIBS
    • Publication number 20110069120
    • Publication date Mar 24, 2011
    • Siddhartha Bhowmik
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PRINTING DEVICE
    • Publication number 20110018938
    • Publication date Jan 27, 2011
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Fluid Ejection Cartridge And Method
    • Publication number 20100271445
    • Publication date Oct 28, 2010
    • Alok Sharan
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PRINT HEAD DIE SLOT RIBS
    • Publication number 20090096845
    • Publication date Apr 16, 2009
    • Hewlett-Packard Development Company L.P.
    • David M. Braun
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Formation of a slot in a silicon substrate
    • Publication number 20090053898
    • Publication date Feb 26, 2009
    • Swaroop K. Kommera
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    Semiconductor device
    • Publication number 20090032935
    • Publication date Feb 5, 2009
    • Siddhartha Bhowmik
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    Ablation
    • Publication number 20090020511
    • Publication date Jan 22, 2009
    • Swaroop K. Kommera
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR