Growing community of inventors

Madison, NJ, United States of America

John M Van Ryzin

Average Co-Inventor Count = 1.27

ph-index = 12

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 = 2,992

John M Van RyzinAdrian Parvulescu (3 patents)John M Van RyzinPeter Douma (3 patents)John M Van RyzinJohn M Van Ryzin (14 patents)Adrian ParvulescuAdrian Parvulescu (16 patents)Peter DoumaPeter Douma (15 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sony Corporation (9 from 58,130 patents)

2. Sony Electronics Inc (9 from 2,335 patents)

3. Other (5 from 832,843 patents)


14 patents:

1. 6446080 - Method for creating, modifying, and playing a custom playlist, saved as a virtual CD, to be played by a digital audio/visual actuator device

2. 6404984 - Lighted camera for dental examinations and method of using the same

3. 6393430 - Method and system for automatically recording music data files by using the hard drive of a personal computer as an intermediate storage medium

4. 6353659 - Answering machine apparatus adapted for use with a telephone coupled to a telephone line having a telephone number associated therewith

5. 6255961 - Two-way communications between a remote control unit and one or more devices in an audio/visual environment

6. 6131130 - System for convergence of a personal computer with wireless audio/video

7. 6127941 - Remote control device with a graphical user interface

8. 6052471 - Smart audio receiver that automatically select an input audio source

9. 6031797 - Media playback device capable of shuffled playback based on a user's

10. 6011854 - Automatic recognition of audio information in a broadcast program

11. 5991240 - Alarm clock with automatic time/date setting feature

12. 5909689 - Automatic update of file versions for files shared by several computers

13. 5867457 - Music compact disk player

14. 5844505 - Automobile navigation system

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as of
12/28/2025
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