% Expired Patents = 50.0

Forward Citations = 16

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6 inventors (with patents filed for the assignee):

Ole Gunneskov (1 out of 3 patents)

Peter Jensen (1 out of 1 patent)

Hans Erik Moeller (1 out of 1 patent)

4. Jens Arne Hald (1 out of 1 patent)

5. Carsten Langkjær (1 out of 1 patent)

6. Knud Fabrin (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 6746326 - Hydraulic clutch (2004-06-08),

2. 6739439 - Clutch and brake for rotating body (2004-05-25),

3. 6173614 - Method and device for measuring the height of the cutting table (2001-01-16),

4. 5970800 - Method of determining the mass flow of a flow of grains (1999-10-26),

Company Overview

Dronningborg Industries A/S is a leading manufacturer of precision agricultural machinery, with a focus on combine harvesters and grain handling equipment. With over 50 years of experience in the industry, the company is known for its innovation, quality, and reliability. Dronningborg Industries A/S is committed to providing farmers with the most advanced technology to improve efficiency and productivity in the field.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#35 in

#584 in Denmark

DK

Dronningborg Industries A/s

Forward Citations = 16

6 inventors:

Ole Gunneskov (1 out of 3 patents)

Peter Jensen (1 out of 1 patent)

Hans Erik Moeller (1 out of 1 patent)

4. Jens Arne Hald (1 out of 1 patent)

5. Carsten Langkjær (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dronningborg Industries A/s. Retrieved from https://idiyas.com/company/dronningborg-industries-a-s

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]