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For the Inventor, By the Inventor

Korschenbroich, Germany

Carl H Hafele

This inventor holds 6 USPTO granted patents. Top assignees: Sempell Aktiengesellschaft, Other. Active years: 1979-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Carl H Hafele. Retrieved from https://idiyas.com/inventor/carl-h-hafele

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 4

Forward Citations = 31(Granted Patents)


Location History:

  • 4050 Monchen-Gladbach, DE (1979 - 1984)
  • 4050 Monchengladbach 1, DE (1987)
  • 4052 Korschenbroich 1, DE (1989)
  • Korschenbroich, DE (1990)

Company Filing History:

goldMedal2 out of 3 
 
Sempell Aktiengesellschaft
 patents
silverMedal5 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1979-1990

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6 patents (USPTO):Explore Patents
1. 4938120 - Device for influencing the reset value of a valve (1990-07-03),
2. 4875659 - Servo-valve (1989-10-24),
3. 4638650 - Rotary drive lock (1987-01-27),
4. 4482127 - Valve structure (1984-11-13),
5. 4309021 - Valve structure (1982-01-05),
6. 4156529 - Stuffing box seal for fittings (1979-05-29),

Title: The Innovations of Carl H Hafele

Introduction

Carl H Hafele is a notable inventor based in Korschenbroich, Germany. He has made significant contributions to the field of engineering, particularly in the development of devices that influence valve mechanisms. With a total of 6 patents to his name, Hafele's work showcases his expertise and innovative spirit.

Latest Patents

Hafele's latest patents include a device designed for influencing the reset value of a valve. This invention addresses the difference between the ON behavior of a pressure switch or valve and its reset behavior. The movable pressurized part is connected to one of the components of a magnet assembly, which allows for improved functionality. Another notable patent is for a servo-valve, which features a metal bellows fitted onto an end section of the valve stem. This design enables the bellows to compensate for forces at the seal, enhancing the overall performance of the valve.

Career Highlights

Throughout his career, Hafele has worked with various companies, including Sempell Aktiengesellschaft. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his innovative ideas.

Collaborations

Hafele has collaborated with several professionals in his field, including his coworker Manfred Weyand. These partnerships have likely played a role in the successful development of his patents and inventions.

Conclusion

Carl H Hafele's contributions to engineering through his patents demonstrate his innovative capabilities and commitment to advancing technology. His work continues to influence the industry and inspire future inventors.

Profile summary based on public USPTO records.
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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