For the Inventor, By the Inventor

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Duisburg, undefined

Klockner-werke Ag

USPTO Granted Patents = 75

Forward Citations = 374

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70 inventors (with patents filed for the assignee):

Wilhelm Berstermann (8 out of 9 patents)

Ulrich Grisar (6 out of 7 patents)

Lothar Gutjahr (6 out of 7 patents)

4. Hans Jurgen Langhammer (5 out of 5 patents)

5. Wolfgang Spath (4 out of 4 patents)

6. Hans Warnke (4 out of 6 patents)

7. Lothar Fink (4 out of 6 patents)

8. Manfred Chitil (4 out of 5 patents)

9. Willy Watermann (3 out of 3 patents)

10. Hans Gunther Geck (3 out of 3 patents)

11. Gunther Geck (3 out of 3 patents)

12. Jurgen Langhammer (3 out of 3 patents)

13. Joachim Linde (3 out of 4 patents)

14. Werner Schrammel (3 out of 3 patents)

15. Hans-Jurgen Langhammer (3 out of 3 patents)

Core Competencies:

Injection Molding

Spectrographic Analysis

Steel Production

Hydraulically Controlled Extruder

Vulcanization Process

Mine Roof Support

Dust Purification

Continuous Casting

Apparatus for Alloy Testing

Mold Closing Unit

High-Pressure Seal

Coal Gas Supply

75 patents: Sort by Forward Citations

1. 4632651 - Hydraulically controlled extruder injection molding units for the (1986-12-30),

2. 4605367 - Mold closing unit of an injection molding machine (1986-08-12),

3. 4599063 - Injection molding apparatus having die closing and locking means (1986-07-08),

4. 4592714 - Mold closing unit of an injection molding machine (1986-06-03),

5. 4592713 - Mold closing unit of an injection molding machine (1986-06-03),

6. 4592712 - Plastification and injection device for an injection molding machine (1986-06-03),

7. 4568508 - Cut-off process for terminating injection operations of an injection (1986-02-04),

8. 4556315 - Process and apparatus for the emission-spectroscopical testing of (1985-12-03),

9. 4544270 - Apparatus for the spectrographic analysis of workpieces formed from iron (1985-10-01),

10. 4542781 - Breakout warning method, utilizing acoustics, in a continuous casting (1985-09-24),

11. 4480821 - Apparatus for performing a work function on a tubular workpiece (1984-11-06),

12. 4475581 - Method and apparatus for fabricating glad ingots (1984-10-09),

13. 4473399 - Method of supplying coal gas to a smelting works (1984-09-25),

14. 4464831 - Method and device for fabricating insulated joints for railroad tracks (1984-08-14),

15. 4453904 - Injection mold device for forming an article such as footwear (1984-06-12),

Klockner-Werke AG is a global manufacturing company specializing in producing steel and metal products. With over 100 years of experience, Klockner-Werke is recognized for its high-quality products and innovative solutions. The company operates in various sectors, including automotive, construction, and machinery. Klockner-Werke is committed to sustainable practices and continuously invests in research and development to meet the evolving needs of its customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

75 Patents

#5 in Duisburg

#777 in D

#9,617 in the World

Duisburg, undefined

Klockner-werke Ag

Forward Citations = 374

70 inventors:

Wilhelm Berstermann (8 out of 9 patents)

Ulrich Grisar (6 out of 7 patents)

Lothar Gutjahr (6 out of 7 patents)

4. Hans Jurgen Langhammer (5 out of 5 patents)

5. Wolfgang Spath (4 out of 4 patents)

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