Woodside, CA, United States of America

John O Ryan

This inventor holds 76 USPTO granted patents and 1 published patent application, plus 15 CIPO patents and 3 EPO patents, primarily in Video Copy Protection (CPC class 380 ). Top assignees: Macrovision Corporation, Ampex Corporation, Rovi Solutions Corporation. Active years: 1980-2020.

USPTO Granted Patents = 76 

% Patents Active = 88.2

 

 

Average Co-Inventor Count = 1.5

ph-index = 25

Forward Citations = 2,718(Granted Patents)

Forward Citations (Not Self Cited) = 2,652(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Santa Clara, CA (US) (1986)
  • Cuppertino, CA (US) (1992)
  • Cupertino, CA (US) (1980 - 2011)
  • Woodside, CA (US) (2001 - 2020)

Company Filing History:


Years Active: 1980-2020

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Areas of Expertise:
Copy Protection
Watermarking
Video Signal
Scrambling
High Definition
Media Security
Audio Information
Color Burst
Compression Techniques
Tracking System
Copy Control
Signal Modification
76 patents (USPTO):Explore Patents

Title: The Innovator Behind Commercial Skip System Enhancements: John O Ryan

Introduction:

John O Ryan, a prolific inventor based in Woodside, CA, is renowned for his significant contributions to the world of technology through his numerous patents and innovative solutions. With an impressive portfolio of 76 patents, Ryan stands out as a key figure in the field of media and entertainment technology.

Latest Patents:

One of his latest patents includes the "Method and Apparatus for Reducing and Restoring the Effectiveness of a Commercial Skip System." This groundbreaking invention aims to counteract the effectiveness of commercial skip systems typically found in devices like VCRs and PVRs. By strategically adding signal levels and modifying key signals, the patent offers a unique approach to minimizing or eliminating the skipping of commercials during playback, enhancing the overall viewing experience.

Career Highlights:

Throughout his career, Ryan has made significant strides in the technology sector, notably working with prominent companies such as Macrovision Corporation and Ampex Corporation. His expertise and innovative mindset have led to the development of cutting-edge solutions that have contributed to advancements in the media and entertainment industry.

Collaborations:

Ryan has collaborated with esteemed professionals in the field, including Ronald Quan and James R Holzgrafe. Together, they have worked on various projects and inventions, leveraging their combined skills and expertise to push the boundaries of technological innovation.

Conclusion:

In conclusion, John O Ryan's remarkable journey as an inventor showcases his dedication to pushing the boundaries of innovation in the technology landscape. With a strong focus on enhancing user experiences and tackling complex challenges, Ryan's contributions continue to shape the future of media and entertainment technology.

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