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For the Inventor, By the Inventor

Willmar, MN, United States of America

Prinsco, Inc.


USPTO Granted Patents = 19

% Expired Patents = 15.8



Trademarks = 21

Forward Citations = 136

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12 inventors (with patents filed for the assignee):

goldMedal Carl Raymond Douglass, Iii (10 out of 12 patents)

silverMedal Brian L Douglass (5 out of 7 patents)

bronzeMedal Joseph Dale Larkins (3 out of 3 patents)

4.  Jeremy N Duininck (2 out of 2 patents)

5.  Eldon G Bonnema (2 out of 4 patents)

6.  Timothy R Toliver (1 out of 1 patent)

7.  Michael L Pluimer (1 out of 1 patent)

8.  James L Fouss (1 out of 2 patents)

9.  Stephen L Roe (1 out of 1 patent)

10.  John L Seehausen (1 out of 1 patent)

11.  Zachary J Jemming (1 out of 1 patent)

12.  Rory M Shea (1 out of 1 patent)

13.  Carl Douglass (0 patent)

14.  Carl Raymond Douglass (0 patent)

15.  Carl Iii Douglass (0 patent)


19 patents:

1. D1125448 - Septic chamber (2026-05-05),
2. 12584305 - Low profile asymmetric leaching chamber for onsite wastewater management system (2026-03-24),
3. D1053304 - Septic chamber (2024-12-03),
4. D1036617 - Septic chamber end cap (2024-07-23),
5. D1036616 - Septic chamber (2024-07-23),
6. 11795679 - Asymmetric leaching chamber for onsite wastewater management system (2023-10-24),
7. 10428978 - Webless corrugated dual wall foundation drain and related method (2019-10-01),
8. 9815229 - Method of rotational molding rib profile for large diameter pipe fittings (2017-11-14),
9. 9764506 - System and method of inspecting inner smooth wall of corrugated dual wall pipe (2017-09-19),
10. 9662826 - Coilable dual wall corrugated pipe and related method (2017-05-30),
11. D787649 - Webless corrugated dual wall foundation drain (2017-05-23),
12. 8991830 - Heat-fusible gasket and method of manufacture (2015-03-31),
13. D724704 - Corrugated foundation drainage tile (2015-03-17),
14. 8967674 - Rib construction for large diameter pipe fittings (2015-03-03),
15. D650053 - Pipe rib gasket (2011-12-06),
Company Overview
Prinsco, Inc. is a leading manufacturer specializing in innovative drainage solutions and water management systems. Based in Willmar, Minnesota, the company focuses on developing high-quality products that enhance agricultural productivity and environmental sustainability. Prinsco's expertise encompasses a range of technologies, including advanced plastic pipe systems and drainage solutions designed to optimize water flow and soil health. The organization is committed to providing effective solutions that meet the evolving needs of its customers across various sectors.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Prinsco, Inc. USPTO Patent Assignee Logo
19 Patents

#3 in

#17,138 in

#32,663 in the World

Willmar, MN (US)
Willmar, MN, United States of America

Prinsco, Inc.

Forward Citations = 136

12 inventors:

goldMedal Carl Raymond Douglass, Iii (10 out of 12 patents)

silverMedal Brian L Douglass (5 out of 7 patents)

bronzeMedal Joseph Dale Larkins (3 out of 3 patents)

4.  Jeremy N Duininck (2 out of 2 patents)

5.  Eldon G Bonnema (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Prinsco, Inc.. Retrieved from https://idiyas.com/company/prinsco

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]
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