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Munich, Germany

Dyckerhoff & Widmann Aktiengesellschaft

USPTO Granted Patents = 104

Trademarks = 4

Forward Citations = 1,049

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93 inventors (with patents filed for the assignee):

Dieter Jungwirth (17 out of 18 patents)

Thomas Herbst (15 out of 15 patents)

Klemens Finsterwalder (12 out of 12 patents)

4. Ulrich Finsterwalder (9 out of 10 patents)

5. Oswald Nutzel (8 out of 9 patents)

6. Herbert Schambeck (8 out of 9 patents)

7. Wilhelm Buchler (7 out of 8 patents)

8. Peter Auer (6 out of 6 patents)

9. Johann Wlodkowski (6 out of 6 patents)

10. Lorenz Schnitzler (5 out of 5 patents)

11. Helmut Lieske (5 out of 5 patents)

12. Otmar Langwadt (4 out of 7 patents)

13. Reinhard Klockner (4 out of 4 patents)

14. Alto Mannhart (4 out of 4 patents)

15. Lorenz Maier (3 out of 4 patents)

Core Competencies:

Tension Member

Prestressed Concrete

Soil Anchor

Rock Anchor

Corrosion Protection

Railroad Tie

Anchoring Device

Reinforcing Bar

Construction Components

Slide Surface Formation

Bridge Support System

Cable Tensioning

104 patents: Sort by Forward Citations

1. 6360501 - Guide unit for a tension member at a structural component (2002-03-26),

2. 6055691 - Method of mounting and tensioning a freely tensioned tension member and (2000-05-02),

3. 5924250 - Sealing arrangement in a bundled tension member for prestressed concrete (1999-07-20),

4. 5809710 - Method of tensioning a tension member composed of a plurality of (1998-09-22),

5. 5803641 - Device for use in inserting individual tension elements of a freely (1998-09-08),

6. 5707181 - Method of producing an intended breaking point in a tension member for a (1998-01-13),

7. 5683519 - Method of cleaning and exposing portions of limited length of strands of (1997-11-04),

8. 5624628 - Method of introducing a casting compound into a hollow space (1997-04-29),

9. 5603589 - Method for manufacturing an anchor element for a soil anchor for a rock (1997-02-18),

10. 5472296 - Corrosion protected support element for a soil anchor or a rock anchor, (1995-12-05),

11. 5439629 - Method and apparatus for producing prefabricated components from (1995-08-08),

12. 5437526 - Arrangement for anchoring a rod-shaped tension member of composite fiber (1995-08-01),

13. 5389765 - Arrangement for severing the tension member of a soil anchor at a (1995-02-14),

14. 5193940 - Mine roof support system (1993-03-16),

15. 5135164 - Prestressed concrete railroad tie (1992-08-04),

Dyckerhoff & Widmann Aktiengesellschaft is a leading construction company specializing in large-scale infrastructure projects. Established in 1987, the company has built a strong reputation for delivering high-quality construction solutions. With a focus on sustainable development and innovation, Dyckerhoff & Widmann provides a wide range of services including design, engineering, project management, and construction. The company's portfolio includes bridges, tunnels, highways, railways, airports, and industrial facilities. By combining expertise, state-of-the-art technology, and a dedicated workforce, Dyckerhoff & Widmann ensures the successful completion of complex projects, meeting the highest safety and quality standards in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

104 Patents

#52 in W-8000 Munich

#603 in Germany

#7,308 in the World

Munich, Germany

Dyckerhoff & Widmann Aktiengesellschaft

Forward Citations = 1,049

93 inventors:

Dieter Jungwirth (17 out of 18 patents)

Thomas Herbst (15 out of 15 patents)

Klemens Finsterwalder (12 out of 12 patents)

4. Ulrich Finsterwalder (9 out of 10 patents)

5. Oswald Nutzel (8 out of 9 patents)

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