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For the Inventor, By the Inventor

Esslingen, Germany

Hans Schaal

This inventor holds 6 USPTO granted patents. Top assignees: Daimler-Benz Ag, Mercedes-Benz Aktiengesellschaft. Active years: 1978-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans Schaal. Retrieved from https://idiyas.com/inventor/hans-schaal

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 = 2.4

ph-index = 4

Forward Citations = 106(Granted Patents)


Location History:

  • Stuttgart, DE (1978 - 1979)
  • Esslingen, DE (1990 - 1992)

Company Filing History:

goldMedal4 out of 1,777 
 
Daimler-Benz Ag
 patents
silverMedal2 out of 932 
 
Mercedes-Benz Aktiengesellschaft
 patents

Years Active: 1978-1992

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6 patents (USPTO):Explore Patents
1. 5135049 - Vent line in the cooling circuit of an internal combustion engine (1992-08-04),
2. 5088453 - Delivery valve unit on a compensating tank (1992-02-18),
3. 4965555 - Arrangement for accurately installing a replaceable reed switch of a (1990-10-23),
4. 4938303 - Cooling air circulation system in the front end of a motor vehicle (1990-07-03),
5. 4139053 - Radiator, especially for motor vehicles (1979-02-13),
6. 4121682 - Radiator mounting of a vehicle, especially of a motor vehicle (1978-10-24),

Title: The Innovative Contributions of Hans Schaal

Introduction

Hans Schaal is a notable inventor based in Esslingen, Germany. He has made significant contributions to the field of internal combustion engine technology. With a total of 6 patents to his name, Schaal's work has had a lasting impact on automotive engineering.

Latest Patents

One of Schaal's latest patents is a vent line in the cooling circuit of an internal combustion engine. This venting arrangement connects a radiator to a top section of an expansion tank located at a higher level than the radiator. To prevent air from being trapped inside the vent line, a vent valve in the form of a flap or diaphragm valve is installed at the highest point. This design allows trapped air to escape during operation and filling, ensuring efficient cooling. Another significant patent is a delivery valve unit on a compensating tank in the cooling circuit. This unit features individual relief valves housed horizontally in a cover of the compensating tank, surrounded by valve housings that snap together. This innovative arrangement prevents deformation of sealing surfaces and leaks, even with dimensional changes in the compensating tank.

Career Highlights

Throughout his career, Hans Schaal has worked with prestigious companies such as Daimler-Benz AG and Mercedes-Benz Aktiengesellschaft. His experience in these leading automotive firms has allowed him to develop and refine his innovative ideas.

Collaborations

Schaal has collaborated with notable colleagues, including Thomas Attinger and Wolfgang Kleineberg. Their combined expertise has contributed to the advancement of automotive technologies.

Conclusion

Hans Schaal's inventive spirit and technical expertise have led to significant advancements in internal combustion engine technology. His patents reflect a commitment to innovation and efficiency in automotive engineering.

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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