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Hemer-Sundwig, Germany

Sundwiger Eisenhutte Maschinenfabrik Grah & Co.

USPTO Granted Patents = 12

Forward Citations = 57

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14 inventors (with patents filed for the assignee):

Horst Schenk (3 out of 4 patents)

Willi Sporenberg (3 out of 4 patents)

Gerhard Kummerhoff (2 out of 2 patents)

4. Ewald Uphues (2 out of 2 patents)

5. Heinrich Rennebaum (2 out of 2 patents)

6. Karl Lefor (1 out of 2 patents)

7. Werner Sattler (1 out of 2 patents)

8. Herbert Gellenbeck (1 out of 3 patents)

9. Herbert Klockenhoff (1 out of 1 patent)

10. Reinhold Wagner (1 out of 1 patent)

11. Friedrich Muller (1 out of 1 patent)

12. Benito Kakoschke (1 out of 1 patent)

13. Peter Rheinthal (1 out of 1 patent)

14. Peter Dziura (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5184788 - Apparatus for guiding and more particularly coiling webs of material (1993-02-09),

2. 5106028 - Contact pressure and parting device for a metal strip to be connected to (1992-04-21),

3. 5007273 - Four-high roll or six-high roll stand having laterally supported working (1991-04-16),

4. 4866967 - Apparatus for the stretch levelling and slitting of metal strip (1989-09-19),

5. 4805433 - Multi-roll rolling stand having intermediate rolls which can be (1989-02-21),

6. 4719963 - Process for the production of a metal strand, more particularly in the (1988-01-19),

7. 4354373 - Axial adjustment device for tapered intermediate rolls in a clustered (1982-10-19),

8. 4347962 - Brake roll for spanning several bands (1982-09-07),

9. 4244534 - Strip coiler (1981-01-13),

10. 4199117 - Winding device for metal strips (1980-04-22),

11. 4124415 - Process for heating metal strips, in particular non-ferrous metal strips (1978-11-07),

12. 4022367 - Device for conveying metal sheets for affixation to a windup drum for (1977-05-10),

Sundwiger Eisenhutte Maschinenfabrik Grah & Co., founded in 1906, is a leading manufacturer of high-quality specialty machinery for the steel and metals industry. Their products include hot rolling mills, cold rolling mills, and processing lines. With a strong focus on innovation and customer satisfaction, SEF continuously strives to deliver cutting-edge solutions and top-notch service to their global clientele.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#97 in Hemer-Sundwig

#3,269 in Germany

#46,692 in the World

Hemer-Sundwig, Germany

Sundwiger Eisenhutte Maschinenfabrik Grah & Co.

Forward Citations = 57

14 inventors:

Horst Schenk (3 out of 4 patents)

Willi Sporenberg (3 out of 4 patents)

Gerhard Kummerhoff (2 out of 2 patents)

4. Ewald Uphues (2 out of 2 patents)

5. Heinrich Rennebaum (2 out of 2 patents)

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