% Expired Patents = 50.0

Trademarks = 1

Forward Citations = 70

Loading Chart...

6 inventors (with patents filed for the assignee):

Julian P Trangsrud (6 out of 30 patents)

Carsten Dierkes (2 out of 2 patents)

John G Stark (1 out of 2 patents)

4. Bradley C Currie (1 out of 1 patent)

5. Thomas Fleischanderl (1 out of 1 patent)

6. Hannes Brandstaetter (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 8322540 - Filter element for water loaded with solid particles and dissolved toxic substances and purification system equipped with said filter element (2012-12-04),

2. 8322109 - Multi-cage spacer (2012-12-04),

3. 7632403 - Liquid filtration system (2009-12-15),

4. 7044077 - Mechanical warning device (2006-05-16),

5. 6919033 - Stormwater treatment system for eliminating solid debris (2005-07-19),

6. 6695002 - Outside drop for manhole (2004-02-24),

7. 6347781 - Concrete hole former with embedded gasket (2002-02-19),

8. 6226928 - Caustic fluid blocking member in the base of a manhole (2001-05-08),

9. 6206609 - Extension for a canal bed liner (2001-03-27),

10. D420891 - Stabilizing ground anchor (2000-02-22),

Company Overview

Royal Environmental Systems, Inc. is a company based in Stacy, Minnesota, specializing in innovative environmental solutions. The organization focuses on developing advanced technologies and systems aimed at enhancing waste management and promoting sustainability. With a commitment to environmental stewardship, Royal Environmental Systems engages in research and development to create products that improve ecological outcomes and support regulatory compliance. Their expertise spans various sectors, contributing to cleaner and more efficient environmental practices.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

10 Patents

#1 in Stacy, MN

#850 in Minnesota

#29,882 in US

#56,092 in the World

Stacy, MN, United States of America

Royal Environmental Systems, Inc.

Forward Citations = 70

6 inventors:

Julian P Trangsrud (6 out of 30 patents)

Carsten Dierkes (2 out of 2 patents)

John G Stark (1 out of 2 patents)

4. Bradley C Currie (1 out of 1 patent)

5. Thomas Fleischanderl (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Royal Environmental Systems, Inc.. Retrieved from https://idiyas.com/company/royal-environmental-systems

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]