% Expired Patents = 50.0

Forward Citations = 45

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2 inventors (with patents filed for the assignee):

Heinz Mutter (3 out of 15 patents)

Heinz Baumann (1 out of 16 patents)

4 patents: Sort by Forward Citations

1. 6672340 - Method for filling a vehicle fuel tank with gas (2004-01-06),

2. 6450217 - Switch-over device for a filling station, and a gas filling station (2002-09-17),

3. 6341620 - Pressure limiting valve (2002-01-29),

4. 6293764 - Reciprocating compressor with dry lubricating system (2001-09-25),

Company Overview

Greenfield Ag is a leading agricultural company specializing in sustainable farming practices and innovative solutions for crop management. With a dedicated team of experts and state-of-the-art technology, we provide a comprehensive range of products and services to help farmers maximize their yields and protect the environment. Our commitment to sustainability and excellence sets us apart in the industry, making us a trusted partner for farmers looking to achieve long-term success.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#77 in Basel

#2,004 in Switzerland

Basel, Switzerland

Greenfield Ag

Forward Citations = 45

2 inventors:

Heinz Mutter (3 out of 15 patents)

Heinz Baumann (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Greenfield Ag. Retrieved from https://idiyas.com/company/greenfield-ag

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]