Forward Citations = 39

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9 inventors (with patents filed for the assignee):

Robert J Longman (5 out of 11 patents)

Peter R Helfet (5 out of 7 patents)

Robert M Pettigrew (3 out of 25 patents)

4. Victor C Humberstone (3 out of 6 patents)

5. Keith Gardner (2 out of 6 patents)

6. Jitka Brynjolffssen (1 out of 2 patents)

7. Mark J Broadbent (1 out of 2 patents)

8. Quentin J Lister (1 out of 1 patent)

9. Philip A Storey (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 5406540 - Optical disk recording performance (1995-04-11),

2. 5137617 - Optical disk manufacture (1992-08-11),

3. 4928132 - Optical data storage medium (1990-05-22),

4. 4866696 - Pre-formatted moth-eye type optical data storage member and method (1989-09-12),

5. 4786585 - Image forming and data storage (1988-11-22),

6. 4724444 - Data storage medium (1988-02-09),

Company Overview

Plasmon Data Systems is a leading provider of data storage solutions for businesses. With a focus on secure and reliable storage options, Plasmon offers a range of products including optical storage, tape storage, and archival solutions. Their innovative technologies help organizations effectively manage and protect their data assets.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#693 in San Jose, CA

#10,565 in California

#44,949 in US

San Jose, CA, United States of America

Plasmon Data Systems

Forward Citations = 39

9 inventors:

Robert J Longman (5 out of 11 patents)

Peter R Helfet (5 out of 7 patents)

Robert M Pettigrew (3 out of 25 patents)

4. Victor C Humberstone (3 out of 6 patents)

5. Keith Gardner (2 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Plasmon Data Systems. Retrieved from https://idiyas.com/company/plasmon-data-systems

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]