Ralf Steffens

This inventor holds 7 USPTO granted patents and 3 published patent applications and 3 EPO patents. Top assignees: Leybold Vakuum Gmbh, R-718 Spindel Gbr, Other. Active years: 2002-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ralf Steffens. Retrieved from https://idiyas.com/inventor/ralf-steffens-zn013ypv

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

USPTO Granted Patents = 7 (Patent Applications = 3)

% Patents Active = 57.1

EPO Patents = 3 (Patent Applications = 7)

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 31(Granted Patents)

Location History:

Wesseling-Urfeld, DE (2002)
Steinen, DE (2003 - 2006)
Lörach, DE (2014)
Esslingen, DE (2019 - 2024)

Company Filing History:

5 out of 834,513

Other

patents

Years Active: 2002-2024

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12061023 - Water-based refrigerant for a thermal working machine and thermal working machine having such a refrigerant (2024-08-13),

2. 12012961 - Volume ratio for a R718* compressor (2024-06-18),

3. 10337515 - Spindle compressor using refrigerant cooling for housing and rotor (2019-07-02),

4. 8876506 - Displacement pump with internal compression (2014-11-04),

5. 7056108 - Cooled screw-type vacuum pump (2006-06-06),

6. 6666672 - Drive mechanism for a screw pump (2003-12-23),

7. 6497563 - Dry-compressing screw pump having cooling medium through hollow rotor spindles (2002-12-24),

Title: Ralf Steffens: Innovator in Thermal Working Machines

Introduction

Ralf Steffens is a notable inventor based in Esslingen, Germany. He has made significant contributions to the field of thermal working machines, holding a total of 7 patents. His innovative work focuses on the development of water-based refrigerants and their applications in various thermal systems.

Latest Patents

Among his latest patents is a water-based refrigerant designed for thermal working machines. This refrigerant comprises a mixture based on water and includes a refrigerant component with a hydroxyl group, such as ethanol. The patent details the structure of a thermal working machine that utilizes this refrigerant, which includes an evaporator, condenser, compressor, and throttle element. Another significant patent involves the compression of water vapor as R718, which addresses the adaptation of the internal volume ratio in compressors to optimize performance in refrigeration, air-conditioning, and heat pump technology.

Career Highlights

Ralf Steffens has worked with various companies throughout his career, including Leybold Vakuum GmbH. His expertise in thermal working machines has positioned him as a key figure in the development of innovative refrigerant technologies.

Collaborations

Throughout his career, Ralf has collaborated with notable professionals in the field, including Manfred Behling and Hartmut Kriehn. These collaborations have contributed to the advancement of technologies in thermal working machines.

Conclusion

Ralf Steffens is a distinguished inventor whose work in thermal working machines and water-based refrigerants has made a significant impact in the industry. His innovative patents and collaborations highlight his commitment to advancing technology in this field.

Profile summary based on public USPTO records.