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Dusseldorf, Germany

Sack Gmbh

USPTO Granted Patents = 14

Forward Citations = 59

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14 inventors (with patents filed for the assignee):

Emil F Kersting (4 out of 4 patents)

Manfred W Hansen (3 out of 6 patents)

Rolf Schulte (2 out of 2 patents)

4. Ernst Th Sack (2 out of 2 patents)

5. Rudolf Guse (1 out of 4 patents)

6. Horst Zurmahr (1 out of 1 patent)

7. Friedrich Nordmeyer (1 out of 1 patent)

8. Jakob Wetter (1 out of 1 patent)

9. Gunter K Pinkow (1 out of 1 patent)

10. Hans Langen (1 out of 1 patent)

11. Herbert Hansen (1 out of 3 patents)

12. Karl H Margraf (1 out of 1 patent)

13. Karl Griese (1 out of 1 patent)

14. Willi Wrossok (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 4476914 - Method and apparatus for cooling metal strands, more particularly slab (1984-10-16),

2. 4354411 - Cold shears and method for cutting billets and bars (1982-10-19),

3. 4342358 - Continuous casting installation (1982-08-03),

4. 4333370 - Method and plant for slitting a hot slab emerging from a continuous (1982-06-08),

5. 4312209 - Method for operating a strip rolling mill (1982-01-26),

6. 4251180 - Roll-changing apparatus (1981-02-17),

7. 4218159 - Multiple-part hobbing cutter (1980-08-19),

8. 4217950 - Continuous casting apparatus (1980-08-19),

9. 4204449 - Flying cropping shears for hot strip (1980-05-27),

10. 4199084 - Foundry ladle support device having guides for ladle placement (1980-04-22),

11. 4161885 - Measuring apparatus for measuring the roll gap in gauge-controlled roll (1979-07-24),

12. 4161115 - Apparatus for monitoring hydraulic plant for leakages (1979-07-17),

13. 4092891 - Apparatus for cutting steel sections (1978-06-06),

14. 4088309 - Cooling device for slabs with slab-tilting devices for turning the (1978-05-09),

Sack Gmbh is a leading provider of innovative packaging solutions. With a focus on sustainability and quality, we offer a wide range of products including flexible packaging, bulk bags, and tote bags. Our state-of-the-art facilities and experienced team ensure that we meet the unique needs of each customer, delivering superior packaging solutions on time and within budget.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#20 in Dusseldorf

#2,894 in Germany

#40,882 in the World

Dusseldorf, Germany

Sack Gmbh

Forward Citations = 59

14 inventors:

Emil F Kersting (4 out of 4 patents)

Manfred W Hansen (3 out of 6 patents)

Rolf Schulte (2 out of 2 patents)

4. Ernst Th Sack (2 out of 2 patents)

5. Rudolf Guse (1 out of 4 patents)

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