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Sunnyvale, CA, United States of America

Amdahl Corporation

USPTO Granted Patents = 170

CIPO Patents = 1

Forward Citations = 4,532

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201 inventors (with patents filed for the assignee):

Gary A Woffinden (14 out of 14 patents)

Stephen J Rawlinson (12 out of 12 patents)

Allan J Zmyslowski (11 out of 12 patents)

4. Stephen S Si (11 out of 11 patents)

5. Jeffrey A Thomas (9 out of 9 patents)

6. Robert M Maier (8 out of 9 patents)

7. Joseph A Petolino (8 out of 12 patents)

8. Hsiao-Peng S Lee (8 out of 8 patents)

9. Quang H Nguyen (8 out of 8 patents)

10. Michael DeMar Taylor (7 out of 9 patents)

11. Richard L Bishop (7 out of 8 patents)

12. Helge Knudsen (6 out of 6 patents)

13. Donald L Hanson (6 out of 6 patents)

14. Eugene T Wang (5 out of 18 patents)

15. Theodore S Robinson (5 out of 5 patents)

Core Competencies:

Multiprocessor Servers

Error Recovery

Cache Memory

Data Migration

Synchronization Control

Access Control

Database Systems

Clock Skew Measurement

Dynamic Address Translation

Storage Classes

Signal Processing

Hardware Interruptions

170 patents: Sort by Forward Citations

1. 6453344 - Multiprocessor servers with controlled numbered of CPUs (2002-09-17),

2. 6397216 - Ordering keys in a table using an ordering mask (2002-05-28),

3. 6393411 - Device and method for authorized funds transfer (2002-05-21),

4. 6289457 - Value data system having containers for theft deterrent repositories (2001-09-11),

5. 6286089 - Coupling facility using dynamic address translation (2001-09-04),

6. 6145066 - Computer system with transparent data migration between storage volumes (2000-11-07),

7. D431568 - Smart card carrier (2000-10-03),

8. 5748976 - Mechanism for maintaining data coherency in a branch history instruction (1998-05-05),

9. 5682535 - Operating system and data base using table access method with dynamic (1997-10-28),

10. 5651113 - Method and apparatus for indicating a time-out by generating a time (1997-07-22),

11. 5615327 - Apparatus and method for controlling the initiating of a synchronization (1997-03-25),

12. 5603008 - Computer system having cache memories with independently validated keys (1997-02-11),

13. 5596752 - System for creating, editing, displaying, and executing rules-based (1997-01-21),

14. 5594899 - Operating system and data base having an access structure formed by a (1997-01-14),

15. 5588134 - System for establishing priority among selected tasks based on location (1996-12-24),

Company Overview

Amdahl Corporation, headquartered in Sunnyvale, California, specializes in advanced data processing systems. The company is recognized for its expertise in multiprocessor servers and innovative technologies that enhance system performance and reliability. Key areas of focus include error recovery, cache memory management, and data migration strategies, which are critical for optimizing database systems. Amdahl's contributions to synchronization control and access control further solidify its position in the data processing landscape, catering to the evolving needs of enterprise computing.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

170 Patents

#32 in Sunnyvale, CA

#510 in California

#2,350 in US

#4,869 in the World

Sunnyvale, CA, United States of America

Amdahl Corporation

Forward Citations = 4,532

201 inventors:

Gary A Woffinden (14 out of 14 patents)

Stephen J Rawlinson (12 out of 12 patents)

Allan J Zmyslowski (11 out of 12 patents)

4. Stephen S Si (11 out of 11 patents)

5. Jeffrey A Thomas (9 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Amdahl Corporation. Retrieved from https://idiyas.com/company/amdahl

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]

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