Growing community of inventors

New York, NY, United States of America

David A Hughes

Average Co-Inventor Count = 1.46

ph-index = 7

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 315

David A HughesMatthew A Carpenter (3 patents)David A HughesPhuong L Nguyen (3 patents)David A HughesAllen J Smith (2 patents)David A HughesMandana Massiha (2 patents)David A HughesDavid A Hughes (10 patents)Matthew A CarpenterMatthew A Carpenter (3 patents)Phuong L NguyenPhuong L Nguyen (3 patents)Allen J SmithAllen J Smith (2 patents)Mandana MassihaMandana Massiha (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (5 from 832,761 patents)

2. Sony Corporation (5 from 58,130 patents)

3. Sony Music Entertainment Inc. (3 from 24 patents)

4. Sony Electronics Inc (1 from 2,335 patents)

5. Sony Music Holdings Inc. (1 from 1 patent)


10 patents:

1. RE44569 - System and method for filling content gaps

2. 7756792 - System and method for controlling the use and duplication of digital content distributed on removable media

3. 7526450 - Interface for presenting downloadable digital data content format options

4. 7277877 - System and method for selecting a music channel

5. 7043447 - Method for facilitating a transaction for purchasable content over an electronic network

6. 6794567 - Audio quality based culling in a peer-to-peer distribution model

7. 6791020 - System and method for filling content gaps

8. 6748537 - System and method for controlling the use and duplication of digital content distributed on removable media

9. 6670537 - Media player for distribution of music samples

10. 6555738 - Automatic music clipping for super distribution

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as of
12/17/2025
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