Forward Citations = 84

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7 inventors (with patents filed for the assignee):

Heinz Dreyer (6 out of 19 patents)

Franz Grosse-Scharmann (2 out of 7 patents)

Bernd Gattermann (1 out of 7 patents)

4. Bernhard Steenken (1 out of 1 patent)

5. Franz Gross-Scharmann (1 out of 1 patent)

6. Heinz Bolwin (1 out of 1 patent)

7. Werner Hulsmann (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 4520874 - Agricultural machine (1985-06-04),

2. 4407207 - Drill having disk furrow openers (1983-10-04),

3. 4175705 - Machine for the spreading of material in granular and powder form (1979-11-27),

4. 4148364 - Cultivating machine (1979-04-10),

5. 4142685 - Machine for the pneumatic spreading of granular material (1979-03-06),

6. 4058180 - Attaching device for mounting of a broadcast fertilizer spreader on a (1977-11-15),

7. 4037759 - Seed planting machine (1977-07-26),

8. 4037545 - Machine for distributing material (1977-07-26),

9. 4020991 - Machine for the pneumatic spreading of granular material (1977-05-03),

Company Overview

Amazonen-werke H. Dreyer is a German agricultural machinery manufacturer that specializes in seeders, spreaders, and other innovative farming equipment. With over 135 years of experience, the company is known for its high-quality products and cutting-edge technology. Amazonen-werke is committed to helping farmers improve their efficiency and productivity in the field.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#3 in Hasbergen

#4,072 in Germany

Hasbergen, Germany

Amazonen-Werke H. Dreyer

Forward Citations = 84

7 inventors:

Heinz Dreyer (6 out of 19 patents)

Franz Grosse-Scharmann (2 out of 7 patents)

Bernd Gattermann (1 out of 7 patents)

4. Bernhard Steenken (1 out of 1 patent)

5. Franz Gross-Scharmann (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Amazonen-Werke H. Dreyer. Retrieved from https://idiyas.com/company/amazonen-werke-h-dreyer

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]