For the Inventor, By the Inventor

Enter assignee name

Minneapolis, MN, United States of America

The Lemna Corporation

USPTO Granted Patents = 15

Trademarks = 1

Forward Citations = 253

Loading Chart...

Loading Chart...

15 inventors (with patents filed for the assignee):

Viet H Ngo (6 out of 7 patents)

Warren D Poole (5 out of 6 patents)

Sean J Hancock (4 out of 5 patents)

4. Timothy T France (4 out of 5 patents)

5. Surya R Pidaparti (3 out of 3 patents)

6. Lawrence J DeVore (3 out of 3 patents)

7. Victor V Sygen (3 out of 3 patents)

8. David J Burton (2 out of 5 patents)

9. Steven M Vogel (2 out of 2 patents)

10. David M Anderson (1 out of 1 patent)

11. Gary L D'Heilly (1 out of 1 patent)

12. Brian J Midtling (1 out of 1 patent)

13. John R Dorner (1 out of 1 patent)

14. David W McAnaney (1 out of 1 patent)

15. Delman R Hogen (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 6136194 - Method and device for treating wastewater (2000-10-24),

2. 5861095 - Method and device for treating wastewater (1999-01-19),

3. 5736047 - Hybrid biological nutrient removal system (1998-04-07),

4. 5534141 - Wastewater treatment system with in-pond clarifier (1996-07-09),

5. 5421999 - Floating nitrification reactor in a treatment pond (1995-06-06),

6. 5409601 - Floating aquatic plant treatment system (1995-04-25),

7. 5338452 - High rate anaerobic reactor for primary treatment of high strength (1994-08-16),

8. 5264127 - Floating aquatic plant water treatment system with sprayer system (1993-11-23),

9. 5256281 - Baffle system for anaerobic sewage treatment pond (1993-10-26),

10. 5235797 - Method of harvesting aquatic plants (1993-08-17),

11. 5197263 - Method and apparatus for harvesting aquatic plants (1993-03-30),

12. 5180501 - Floating aquatic plant water treatment system (1993-01-19),

13. 5161354 - Aquatic plant harvester (1992-11-10),

14. 5096577 - Floating aquatic plant water treatment system (1992-03-17),

15. 4536988 - Aquatic biomass containment barrier and method of assembling same (1985-08-27),

The Lemna Corporation is a leading provider of innovative water treatment solutions using duckweed technology. Our patented processes are sustainable, cost-effective, and environmentally friendly, helping industries and municipalities worldwide to meet their wastewater treatment needs efficiently. With a focus on advanced technology and research, we strive to create a cleaner and more sustainable future for our planet.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#108 in Minneapolis, MN

#603 in Minnesota

#20,400 in US

#38,669 in the World

Minneapolis, MN, United States of America

The Lemna Corporation

Forward Citations = 253

15 inventors:

Viet H Ngo (6 out of 7 patents)

Warren D Poole (5 out of 6 patents)

Sean J Hancock (4 out of 5 patents)

4. Timothy T France (4 out of 5 patents)

5. Surya R Pidaparti (3 out of 3 patents)

Please report any incorrect information to support@idiyas.com

Loading…