Michael Birkelund

This inventor holds 23 USPTO granted patents and 5 published patent applications, plus 3 CIPO patents and 16 EPO patents, primarily in Valve Technology. Top assignee: Danfoss A/s. Active years: 2001-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Michael Birkelund. Retrieved from https://idiyas.com/inventor/michael-birkelund

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

Calculating rank

USPTO Granted Patents = 23 (Patent Applications = 5)

% Patents Active = 78.3

CIPO Patents = 3 (Patent Applications = 2)

EPO Patents = 16 (Patent Applications = 26)

Average Co-Inventor Count = 1.5

ph-index = 7

Forward Citations = 149(Granted Patents)

Location History:

Middelfart, DK (2001 - 2020)
Nordborg, DK (2024)

Company Filing History:

23 out of 1,019

Danfoss A/s

patents

Years Active: 2001-2026

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Areas of Expertise:

Reversible Heat Pump

Check Valve

Electronic Expansion Valve

Solenoid Valve

Shape Memory Alloy Actuator

Flow Control Valve

Proportional Control Valve

Refrigeration System

Electromagnetic Actuator

Damped Axial Check Valve

Servo-Controlled Magnetic Valve

Ejector Arrangement

23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D1147258 - Valve (2026-09-08),

2. 12650254 - Four-way reversing valve for a high capacity reversible heat pump compressor (2026-06-09),

3. 12631272 - Housing assembly for use in a heat exchange system (2026-05-19),

4. 12467555 - Check valve damping (2025-11-11),

5. 11976747 - Compressor unit with a damped axial check valve for a discharge outlet (2024-05-07),

6. 10816015 - Ejector arrangement (2020-10-27),

7. 10663077 - Solenoid valve (2020-05-26),

8. 10571156 - Self-regulating valve for a vapour compression system (2020-02-25),

9. 10443753 - Shape memory alloy actuator for valve for a vapour compression system (2019-10-15),

10. 10253788 - Ejector arrangement (2019-04-09),

11. 10197314 - Electronic expansion valve and methods for calibrating an electronic expansion valve (2019-02-05),

12. 10082219 - Solenoid valve (2018-09-25),

13. 9683673 - Magnetic valve with a one piece housing (2017-06-20),

14. 9416890 - Flow control valve and a method of assembling a flow control valve (2016-08-16),

15. 9360027 - Proportional control valve (2016-06-07),

As an AI assistant specialized in innovations, inventions, inventors, patent attorneys, assignees, and patents, I can provide you with the article about inventor Michael Birkelund based on the given data.

Title: Innovator Spotlight: Michael Birkelund, Revolutionizing Technology in Middelfart, DK

Introduction: Meet Michael Birkelund, a prolific inventor based in Middelfart, DK, who has made significant contributions to the field of engineering with a remarkable portfolio of 18 patents.

Latest Patents:

1. **Ejector Arrangement:** Michael Birkelund's recent invention of an ejector arrangement showcases a housing with multiple ejectors designed along a common axis, each with specific inlets, outlets, and valve elements. This innovative design allows for precise control of fluid mass flow while maintaining a simple construction.

2. **Solenoid Valve:** In his creation of a solenoid valve, Birkelund emphasizes the importance of minimizing noise generation. By leveraging a pressure difference controlled by an armature, this valve design ensures efficient operation with reduced sound levels.

Career Highlights: Michael Birkelund is a valued member of Danfoss A/S, a renowned company in the engineering sector known for its innovative solutions and advanced technologies. His expertise and dedication have led to numerous successful patent applications, solidifying his reputation as a trailblazer in the industry.

Collaborations: Throughout his career, Michael Birkelund has collaborated closely with esteemed colleagues such as Johan Van Beek and Birthe Reese Nissen. Their combined efforts have resulted in groundbreaking inventions and advancements in engineering.

Conclusion: In conclusion, Michael Birkelund's passion for innovation and commitment to excellence shine through in his impressive patent portfolio. His contributions to the field of engineering, particularly in the development of ejector arrangements and solenoid valves, have paved the way for enhanced efficiency and performance in various applications. We look forward to witnessing more groundbreaking inventions from this talented inventor in the future.

Feel free to explore more about Michael Birkelund and his innovative creations on our platform at idiyas.com!

Profile summary based on public USPTO records.