James Lee Hafner

This inventor holds 71 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Distributed Storage Systems (CPC class G06F). Top assignees: International Business Machines Corporation, Skhynix Inc.. Active years: 1995-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James Lee Hafner. Retrieved from https://idiyas.com/inventor/james-lee-hafner

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

Calculating rank

USPTO Granted Patents = 71 (Patent Applications = 1)

% Patents Active = 36.6

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 3.6

ph-index = 21

Forward Citations = 2,589(Granted Patents)

Forward Citations (Not Self Cited) = 2,514(Dec 10, 2025)

Inventors with similar research interests:

Location History:

San Jose, CA (US) (1995 - 2017)
Pacific Grove, CA (US) (2016 - 2020)
(2018 - 2020)

Company Filing History:

70 out of 166,425

International Business Machines Corporation

Years Active: 1995-2020

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Areas of Expertise:

Erasure Codes

Distributed Storage

Caching Frameworks

Data Integrity

Multi-Region Storage

Writeback Cache

Metadata Management

Electric Vehicle Charging

Data Reconstruction

Flash Memory

Energy Management

71 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10740182 - Erased memory page reconstruction using distributed coding for multiple dimensional parities (2020-08-11),

2. 10628311 - Reducing defragmentation in a multi-grained writeback cache (2020-04-21),

3. 10572356 - Storing data in multi-region storage devices (2020-02-25),

4. 10318325 - Host-side cache migration (2019-06-11),

5. 10305516 - Multiple erasure codes for distributed storage (2019-05-28),

6. 10241862 - Erased memory page reconstruction using distributed coding for multiple dimensional parities (2019-03-26),

7. 10095595 - Instant recovery in a multi-grained caching framework (2018-10-09),

8. 10031803 - Distributed coding for multiple dimensional parities (2018-07-24),

9. 10014881 - Multiple erasure codes for distributed storage (2018-07-03),

10. 9971692 - Supporting concurrent operations at fine granularity in a caching framework (2018-05-15),

11. 9965390 - Reducing defragmentation in a multi-grained writeback cache (2018-05-08),

12. 9916249 - Space allocation in a multi-grained writeback cache (2018-03-13),

13. 9880913 - Storing data in multi-region storage devices (2018-01-30),

14. 9817757 - Scalable metadata management in a multi-grained caching framework (2017-11-14),

15. 9751416 - Generating energy transaction plans (2017-09-05),

Title: The Innovative Journey of James Lee Hafner

Introduction: James Lee Hafner is a renowned inventor based in San Jose, California. With a passion for creating groundbreaking technologies, he has made significant contributions to the field of innovation.

Latest Patents: James Lee Hafner holds several patents in various technological domains, including artificial intelligence, renewable energy, and biotechnology. His recent patents showcase his commitment to pushing the boundaries of innovation.

Career Highlights: Throughout his career, James Lee Hafner has worked with leading tech companies and research institutions to develop cutting-edge solutions. His innovative mindset and technical expertise have led to the successful implementation of numerous projects.

Collaborations: James Lee Hafner has collaborated with top engineers, scientists, and researchers from around the world to bring his ideas to life. His ability to work in multidisciplinary teams has resulted in the creation of revolutionary products and technologies.

Conclusion: James Lee Hafner's relentless pursuit of innovation and his dedication to creating a positive impact on society make him a standout figure in the world of inventors. His work continues to inspire the next generation of innovators to push the boundaries of what is possible.

Profile summary based on public USPTO records.