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Andrzej J. Krol

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  • Wayne, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Height and tension adjustable hand exerciser
    • Patent number 11,504,579
    • Issue date Nov 22, 2022
    • D'Addario & Company, Inc.
    • James D'Addario
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Solder-less and tool-less electrical system
    • Patent number 11,309,672
    • Issue date Apr 19, 2022
    • D'Addario & Company, Inc.
    • James D'Addario
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Retractable hand exerciser
    • Patent number 10,974,098
    • Issue date Apr 13, 2021
    • D'Addario & Company, Inc.
    • Patrick Zerbo
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Pivoting plug adapter
    • Patent number 10,958,025
    • Issue date Mar 23, 2021
    • D'Addario & Company, Inc.
    • James D'Addario
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multi-functional finger exercise device
    • Patent number 10,596,413
    • Issue date Mar 24, 2020
    • D'Addario & Company, Inc.
    • Patrick Zerbo
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Musical instrument tuner
    • Patent number D876532
    • Issue date Feb 25, 2020
    • D'Addario & Company, Inc.
    • James D'Addario
    • D17 - Musical instruments
  • Information Patent Grant

    Instrument Mounting Assembly
    • Patent number 9,966,050
    • Issue date May 8, 2018
    • Drum Workshop, Inc.
    • Andrzej J Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Spring enabled audio device mounting apparatus
    • Patent number 9,709,083
    • Issue date Jul 18, 2017
    • Drum Workshop, Inc.
    • Andrzej J. Krol
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Clip-on mounting assembly for musical instruments
    • Patent number 9,631,652
    • Issue date Apr 25, 2017
    • Drum Workshop, Inc.
    • Andrzej J. Krol
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Adjustable cajón instrument
    • Patent number 9,570,053
    • Issue date Feb 14, 2017
    • Drum Workshop, Inc.
    • Andrzej J Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Snare cajón instrument
    • Patent number 9,466,273
    • Issue date Oct 11, 2016
    • Drum Workshop, Inc.
    • Andrzej J Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Top-tuning system for hand percussion instrument
    • Patent number 9,437,176
    • Issue date Sep 6, 2016
    • Drum Workshop, Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Channeled shaker
    • Patent number 9,343,050
    • Issue date May 17, 2016
    • Drum Workshop, Inc.
    • Jeff Sallee
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Eyebolt bracket assembly
    • Patent number 9,257,109
    • Issue date Feb 9, 2016
    • Drum Workshop, Inc.
    • Andrzej J Krol
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adjustable cajón instrument
    • Patent number 9,087,497
    • Issue date Jul 21, 2015
    • KMC Music, Inc.
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Mutable high-hat tambourine
    • Patent number 8,912,417
    • Issue date Dec 16, 2014
    • KMC Music, Inc.
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Jingle shaker
    • Patent number 8,716,582
    • Issue date May 6, 2014
    • KMC Music, Inc.
    • Jeff Sallee
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Top-tuning system for hand percussion instrument
    • Patent number 8,609,967
    • Issue date Dec 17, 2013
    • KMC Music, Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Detachable shaker
    • Patent number 8,558,097
    • Issue date Oct 15, 2013
    • KMC Music, Inc.
    • Andrzej J. Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    One-handed musical triangle
    • Patent number 8,101,841
    • Issue date Jan 24, 2012
    • KMC Music, Inc.
    • Douglas Hinrichs
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Rotating multi-stem instrument bracket
    • Patent number 7,964,781
    • Issue date Jun 21, 2011
    • KMC Music, Inc.
    • Randy Lovvorn
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Drum head assembly and method of tensioning a drum head
    • Patent number 7,074,996
    • Issue date Jul 11, 2006
    • Latin Percussion Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Shaken idiophone
    • Patent number D470169
    • Issue date Feb 11, 2003
    • Latin Percussion, Inc.
    • Raymond Enhoffer
    • D17 - Musical instruments
  • Information Patent Grant

    Musical instrument and method of making same
    • Patent number 6,489,546
    • Issue date Dec 3, 2002
    • Latin Percussion, Inc.
    • Raymond Enhoffer
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Shaken idiophone
    • Patent number 6,362,406
    • Issue date Mar 26, 2002
    • Latin Percussion, Inc.
    • Raymond Enhoffer
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Musical instrument
    • Patent number 6,271,449
    • Issue date Aug 7, 2001
    • Latin Percussion, Inc.
    • Raymond Enhoffer
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Multiple musical instrument holder
    • Patent number 6,091,011
    • Issue date Jul 18, 2000
    • Latin Percussion, Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Drum Key With End Hole
    • Publication number 20220020345
    • Publication date Jan 20, 2022
    • D'Addario & Company, Inc.
    • Ryan Gorman
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Height and Tension Adjustable Hand Exerciser
    • Publication number 20210162259
    • Publication date Jun 3, 2021
    • D'Addario & Company, Inc.
    • James D'Addario
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    Solder-Less and Tool-Less Electrical System
    • Publication number 20210143594
    • Publication date May 13, 2021
    • D'Addario & Company, Inc.
    • James D'Addario
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Pivoting Plug Adapter
    • Publication number 20200194950
    • Publication date Jun 18, 2020
    • D'Addario & Company, Inc.
    • James D'Addario
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Retractable Hand Exerciser
    • Publication number 20190126095
    • Publication date May 2, 2019
    • D'Addario & Company, Inc.
    • Patrick Zerbo
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    Multi-Functional Finger Exercise Device
    • Publication number 20180333609
    • Publication date Nov 22, 2018
    • D'Addario & Company, Inc.
    • Patrick Zerbo
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    SPRING-ENABLED AUDIO DEVICE MOUNTING APPARATUS
    • Publication number 20160157003
    • Publication date Jun 2, 2016
    • Drum Workshop, Inc.
    • ANDRZEJ J. KROL
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    CLIP-ON MOUNTING ASSEMBLY FOR MUSICAL INSTRUMENTS
    • Publication number 20160155432
    • Publication date Jun 2, 2016
    • Drum Workshop, Inc.
    • ANDRZEJ J. KROL
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    ADJUSTABLE CAJÓN INSTRUMENT
    • Publication number 20150325221
    • Publication date Nov 12, 2015
    • Drum Workshop, Inc.
    • Andrzej J. Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Eyebolt Bracket Assembly
    • Publication number 20150262564
    • Publication date Sep 17, 2015
    • Drum Workshop, Inc.
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Snare Cajon Instrument
    • Publication number 20150114206
    • Publication date Apr 30, 2015
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Instrument Mounting Assembly
    • Publication number 20150114205
    • Publication date Apr 30, 2015
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Channeled Shaker
    • Publication number 20150075354
    • Publication date Mar 19, 2015
    • KMC MUSIC, INC.
    • Jeff Sallee
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Top-Tuning System For Hand Percussion Instrument
    • Publication number 20140305281
    • Publication date Oct 16, 2014
    • KMC Music Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Mutable High-Hat Tambourine
    • Publication number 20140260895
    • Publication date Sep 18, 2014
    • Andrzej Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Detachable Shaker
    • Publication number 20130092010
    • Publication date Apr 18, 2013
    • Andrzej J. Krol
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Jingle Shaker
    • Publication number 20120297956
    • Publication date Nov 29, 2012
    • KMC MUSIC, INC.
    • Jeff Sallee
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    ROTATING MULTI-STEM INSTRUMENT BRACKET
    • Publication number 20110167984
    • Publication date Jul 14, 2011
    • KMC Music, Inc.
    • Randy Lovvorn
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    One-Handed Musical Triangle
    • Publication number 20110167981
    • Publication date Jul 14, 2011
    • KMC Music, Inc.
    • Douglas Hinrichs
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Top-Tuning System for Hand Percussion Instrument
    • Publication number 20110167983
    • Publication date Jul 14, 2011
    • KMC Music, Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    FOLDING BAR CHIMES
    • Publication number 20090178536
    • Publication date Jul 16, 2009
    • Kaman Music Corporation
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Drum head assembly and method of tensioning a drum head
    • Publication number 20040094015
    • Publication date May 20, 2004
    • Latin Percussion, Inc.
    • Richard Simons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Musical instrument and method of making same
    • Publication number 20020092405
    • Publication date Jul 18, 2002
    • Latin Percussion, Inc.
    • Raymond Enhoffer
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS