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Plymouth, MN, United States of America

Once Innovations, Inc.

USPTO Granted Patents = 53

% Expired Patents = 22.6

EPO Patents = 3

Trademarks = 3

Forward Citations = 895

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15 inventors (with patents filed for the assignee):

Zdenko Grajcar (52 out of 100 patents)

Kevin Payne (5 out of 13 patents)

Leif Erickson (4 out of 5 patents)

4. Juliette Delabbio (3 out of 8 patents)

5. John Lilly (2 out of 2 patents)

6. David Haskvitz (2 out of 2 patents)

7. Brad Klassen (2 out of 2 patents)

8. Brian A Babb (2 out of 2 patents)

9. Karol Licko (1 out of 4 patents)

10. Peter Simko (1 out of 4 patents)

11. Josef Hoffmann (1 out of 4 patents)

12. David Natarelli (1 out of 2 patents)

13. Hoa Huynh (1 out of 1 patent)

14. Julie Delabbio (1 out of 1 patent)

15. Michael J Ostaffe (1 out of 1 patent)

Core Competencies:

LED Lighting

Spectral Shift Control

Dimmable AC Circuit

Aquaculture Lighting

Livestock Illumination

Light Emitting Diode

Analog AC Circuit

Harmonic Distortion

Biological Responses

Modular Lighting

Reproduction Enhancement

Incubated Eggs

53 patents: Sort by Forward Citations

1. 10330305 - Integral conduit modular lighting (2019-06-25),

2. 10314125 - Dimmable analog AC circuit (2019-06-04),

3. 10244595 - Photonic engine system for actuating the photosynthetic electron transport chain (2019-03-26),

4. 10237956 - System and method of illuminating livestock (2019-03-19),

5. 10206378 - System and method of enhancing swine reproduction (2019-02-19),

6. 10201152 - Systems and methods for promoting biological responses in incubated eggs (2019-02-12),

7. 10154657 - Lighting system and control for aquaculture (2018-12-18),

8. 10104875 - System and method of enhancing reproduction in avian (2018-10-23),

9. 10091857 - Shunt regulator for spectral shift controlled light source (2018-10-02),

10. 10028448 - Light sources adapted to spectral sensitivity of plants (2018-07-24),

11. 9844210 - System and method of enhancing reproduction in avian (2017-12-19),

12. 9775212 - Spectral shift control for dimmable AC LED lighting (2017-09-26),

13. 9775209 - High frequency AC LED lighting system (2017-09-26),

14. 9756837 - Differential illumination to select egg laying sites (2017-09-12),

15. 9730288 - Dimmable analog AC circuit (2017-08-08),

Once Innovations, Inc. is a technology company based in Plymouth, MN, specializing in advanced LED lighting solutions. The company focuses on developing innovative products that enhance lighting efficiency and quality across various applications, including aquaculture and livestock illumination. Their expertise encompasses spectral shift control and dimmable AC circuits, addressing the needs of diverse industries while minimizing harmonic distortion. Once Innovations is committed to advancing sustainable lighting technologies that improve both productivity and environmental impact.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Once Innovations, Inc.

53 Patents

#9 in Plymouth, MN

#184 in Minnesota

#6,661 in US

#13,309 in the World

Plymouth, MN, United States of America

Once Innovations, Inc.

Forward Citations = 895

15 inventors:

Zdenko Grajcar (52 out of 100 patents)

Kevin Payne (5 out of 13 patents)

Leif Erickson (4 out of 5 patents)

4. Juliette Delabbio (3 out of 8 patents)

5. John Lilly (2 out of 2 patents)

Please report any incorrect information to [email protected]

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