TREA

David C. Schwartz

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  • Southboro, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Binder view pocket
    • Patent number 6,874,968
    • Issue date Apr 5, 2005
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Two sided stickys
    • Patent number 6,833,172
    • Issue date Dec 21, 2004
    • Productive Environments, Inc.
    • David C. Schwartz
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Integral self sectioning file folder
    • Patent number 6,679,418
    • Issue date Jan 20, 2004
    • Productive Environments Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Classification file folder marker tabs
    • Patent number 6,543,379
    • Issue date Apr 8, 2003
    • Productive Environments Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Morphing leaf
    • Patent number 6,499,903
    • Issue date Dec 31, 2002
    • Productive Environments Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Essentially open file folder
    • Patent number 6,453,589
    • Issue date Sep 24, 2002
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Self tabbing label and system therefore
    • Patent number 6,364,366
    • Issue date Apr 2, 2002
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Tabbed label
    • Patent number D443894
    • Issue date Jun 19, 2001
    • Productive Environments Inc.
    • David C. Schwartz
    • D19 - Office supplies
  • Information Patent Grant

    Folder binder
    • Patent number 6,196,748
    • Issue date Mar 6, 2001
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Single footprint same face tri-pocket array
    • Patent number 5,586,829
    • Issue date Dec 24, 1996
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Leaf structure with a hinged repositional binding
    • Patent number 5,524,998
    • Issue date Jun 11, 1996
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Cocoon pocket
    • Patent number 5,417,509
    • Issue date May 23, 1995
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Windowing leaf structure
    • Patent number 5,407,231
    • Issue date Apr 18, 1995
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Book cover and binding with respositionable loose leaves
    • Patent number 5,405,169
    • Issue date Apr 11, 1995
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Hypertext book attachment
    • Patent number 5,380,043
    • Issue date Jan 10, 1995
    • Productive Environments
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Hypertext book attachment
    • Patent number 5,316,341
    • Issue date May 31, 1994
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Windowing attachment for a book
    • Patent number 5,165,721
    • Issue date Nov 24, 1992
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Hypertext book attachment
    • Patent number 5,048,869
    • Issue date Sep 17, 1991
    • Productive Environments, Inc.
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

  • Information Patent Application

    CLASSIFICATION FILE FOLDER MARKER TABS
    • Publication number 20020134298
    • Publication date Sep 26, 2002
    • DAVID C. SCHWARTZ
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Binder view pocket
    • Publication number 20020089166
    • Publication date Jul 11, 2002
    • David C. Schwartz
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER