Leonard George Jesionowski

This inventor holds 119 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 3 EPO patents, primarily in Data Storage Management (CPC class G11B15-68). Top assignee: International Business Machines Corporation. Active years: 1998-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Leonard George Jesionowski. Retrieved from https://idiyas.com/inventor/leonard-george-jesionowski

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

USPTO Granted Patents = 119 (Patent Applications = 1)

% Patents Active = 54.6

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 1)

Average Co-Inventor Count = 2.9

ph-index = 22

Forward Citations = 2,651(Granted Patents)

Forward Citations (Not Self Cited) = 2,477(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tuscon, AZ (US) (2010)
Tucson, AZ (US) (1998 - 2024)

Company Filing History:

119 out of 166,351

International Business Machines Corporation

patents

Years Active: 1998-2025

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Areas of Expertise:

Data Storage Library

Magnetic Media

Automated Libraries

Inventory Management

Access Control

Data Encryption

Service Mode

Environmental Acclimation

Availability Prioritization

Log Snapshots

Cooling Systems

Shuttle Cars

119 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12504795 - Data storage library with service mode for protecting data storage drives (2025-12-23),

2. 12125499 - Magnetic media decommission management in a computer system (2024-10-22),

3. 11915730 - Magnetic media decommission management in a computer system (2024-02-27),

4. 11798591 - Lockable air gap deep cells in a tape library (2023-10-24),

5. 11726533 - Data storage library with service mode for protecting data storage drives (2023-08-15),

6. 11500430 - Data storage library with service mode for protecting data storage drives (2022-11-15),

7. 11475919 - Extended air gap deep cells in a tape library (2022-10-18),

8. 11442653 - Fee-based provisioning of supplemental drives in automated data storage libraries (2022-09-13),

9. 11269302 - System for providing an access area for a data storage library (2022-03-08),

10. 11263841 - Data storage library with service mode (2022-03-01),

11. 11238021 - Creating a search index within a data storage library (2022-02-01),

12. 11158355 - Data storage library with positive pressure system (2021-10-26),

13. 10901995 - Performing a search within a data storage library (2021-01-26),

14. 10679666 - Data storage library with interior access regulation (2020-06-09),

15. 10660240 - Method for providing an access area for a data storage library (2020-05-19),

Title: Innovations by Leonard George Jesionowski

Introduction

Leonard George Jesionowski is a prolific inventor based in Tucson, Arizona. With an impressive portfolio of 118 patents, he has made significant contributions to advancing technology, particularly in the realm of magnetic media management. His innovations demonstrate a commitment to improving efficiency and functionality within computer systems.

Latest Patents

One of Leonard's most recent patents focuses on "Magnetic media decommission management in a computer system." This invention addresses the need for effective decommissioning of tape cartridges within a tape library. It provides a comprehensive system and method that includes a decommission canister designed to be integrated within a tape library. The decommission canister contains a fusing element, which can be a heating element, that melts together layers of magnetic tape to inhibit unwinding and reading of the tape, thus ensuring secure decommissioning. Additionally, the patent outlines automated operations for decommissioning tape cartridges, which streamline the process by utilizing robotic accessors to move selected cartridges to a decommission workstation.

Career Highlights

Leonard is currently associated with the International Business Machines Corporation (IBM), a renowned leader in technological innovation. His time at IBM has enabled him to work on numerous projects that advance the capabilities of tape libraries and magnetic media systems.

Collaborations

In his quest for innovation, Leonard has collaborated with notable coworkers Brian Gerard Goodman and Shawn Michael Nave. These partnerships have fostered an environment of creativity and shared expertise, contributing to the remarkable developments in magnetic media management.

Conclusion

Leonard George Jesionowski's contributions to technology through his patents, particularly in magnetic media decommission management, reflect his expertise and commitment to innovation. His work at IBM and collaborations with fellow inventors have undoubtedly paved the way for advancements in computer system efficiency and reliability. As he continues to innovate, the impact of his inventions will resonate throughout the industry for years to come.

Profile summary based on public USPTO records.