John Michael Borkenhagen

This inventor holds 104 USPTO granted patents and 6 published patent applications, plus 1 CIPO patent and 3 EPO patents, primarily in Phase Locked Loops (CPC class G06F9-45558). Top assignees: International Business Machines Corporation, Lenovo (Singapore) Pte. Ltd., Globalfoundries Inc.. Active years: 1990-2026.

USPTO Granted Patents = 104 (Patent Applications = 6)

% Patents Active = 73.1

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 2)

Average Co-Inventor Count = 3.0

ph-index = 17

Forward Citations = 1,705(Granted Patents)

Forward Citations (Not Self Cited) = 1,687(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Rochester, MI (US) (2009)
Rochester, MN (US) (1990 - 2023)

Company Filing History:

97 out of 166,159

International Business Machines Corporation

patents

6 out of 4,420

Lenovo (Singapore) Pte. Ltd.

Years Active: 1990-2026

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Areas of Expertise:

Phase Locked Loop

Charge Pump

Memory Architecture

Spread Spectrum

Server Interconnect

Dynamic Formation

Virtual Machine

Memory Compression

Data Architecture

High Capacity Memory

Repair Actions

Signal Detection

104 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12542547 - Reducing the time to switch between the redundant clock signals applied to a phase lock loop (2026-02-03),

2. 12438547 - Phase-locked loop update cancellation (2025-10-07),

3. 12308847 - Dual loop charge pump for enhanced reliability and power consumption (2025-05-20),

4. 11693446 - On-chip spread spectrum synchronization between spread spectrum sources (2023-07-04),

5. 11558057 - Phase locked loop pulse truncation (2023-01-17),

6. 11527953 - Higher yielding improved matching reference circuit especially applicable for high speed mixed signal applications and phase locked loops and charge pumps (2022-12-13),

7. 11496094 - Voltage-controlled oscillator with centertap bias (2022-11-08),

8. 11341034 - Analysis of verification parameters for training reduction (2022-05-24),

9. 11146307 - Detecting distortion in spread spectrum signals (2021-10-12),

10. 10528399 - Techniques for faster loading of data for accelerators (2020-01-07),

11. 10505553 - Detecting the health of a phase loop lock (2019-12-10),

12. 10031820 - Mirroring high performance and high availablity applications across server computers (2018-07-24),

13. 9984023 - Multi-server system interconnect (2018-05-29),

14. 9851996 - Applying firmware updates in a system with zero downtime by selectively offlining and onlining hardware using a scale-up hypervisor layer (2017-12-26),

15. 9817735 - Repairing a hardware component of a computing system while workload continues to execute on the computing system (2017-11-14),

Title: John Michael Borkenhagen: Pioneering Inventor from Rochester, MN

Introduction: John Michael Borkenhagen is a distinguished inventor hailing from Rochester, Minnesota, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: John Michael Borkenhagen holds several patents in the areas of technology and healthcare, with his most recent inventions focusing on advanced medical devices and sustainable energy solutions.

Career Highlights: Throughout his illustrious career, John Michael Borkenhagen has been recognized for his exceptional problem-solving skills and ability to transform unique ideas into practical inventions that have a positive impact on society.

Collaborations: John Michael Borkenhagen has collaborated with leading research institutions, universities, and companies to further develop and commercialize his inventions, showcasing his dedication to bringing cutting-edge technologies to the market.

Conclusion: John Michael Borkenhagen's relentless pursuit of innovation and his passion for creating solutions to complex challenges have solidified his reputation as a visionary inventor in the field of technology and healthcare.