For the Inventor, By the Inventor

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Stoughton, WI, United States of America

Nelson Industries, Inc.

Calculating rank

USPTO Granted Patents = 109

% Expired Patents = 0.92

Trademarks = 3

Forward Citations = 5,202

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101 inventors (with patents filed for the assignee):

Jeffrey S Morgan (20 out of 24 patents)

Kent Jeffrey Kallsen (15 out of 45 patents)

Larry J Eriksson (15 out of 20 patents)

4. Mark V Holzmann (12 out of 69 patents)

5. Stephen L Fallon (11 out of 22 patents)

6. Mark C Allie (11 out of 15 patents)

7. Jon S Wake (10 out of 13 patents)

8. Tadeusz Jaroszczyk (9 out of 16 patents)

9. Barry Mark Verdegan (9 out of 113 patents)

10. Christopher E Holm (7 out of 84 patents)

11. Brian W Schwandt (7 out of 70 patents)

12. Michael J Connor (7 out of 33 patents)

13. Gary D Goplen (6 out of 10 patents)

14. Mostafa M Khosropour (5 out of 5 patents)

15. Brian K Wagner (4 out of 12 patents)

Core Competencies:

Fluid Filtration

Air Filter

Acoustic Attenuation

Oil Separator

Filter Element

Muffler

Lubricant Circulation

Flow Capacity

Cylindrical Screen

Pressure Sensor

Diagnostic System

Cleanable Filter

109 patents: Sort by Forward Citations

1. 9179772 - Sliding-tube adjustable support leg (2015-11-10),

2. 6709575 - Extended life combination filter (2004-03-23),

3. 6641637 - Additional flow filter (2003-11-04),

4. 6627078 - Filter element cover grip (2003-09-30),

5. 6596043 - Air/oil separator tank with permanent drain layer (2003-07-22),

6. 6569219 - Air filter with serviceable filter media (2003-05-27),

7. 6568540 - Low force closure filter with integral seal (2003-05-27),

8. 6540046 - Compact economical spark arrestor and muffler (2003-04-01),

9. 6537339 - Moisture draining inside-out reverse flow air filter, mold and method (2003-03-25),

10. 6511599 - Multi-element cylindrical filter with equalized flow (2003-01-28),

11. 6482247 - Multi-panel fluid filter with equalized contaminant passages (2002-11-19),

12. 6478959 - Self-fixturing filter (2002-11-12),

13. 6478019 - Flat low profile diesel engine crankcase ventilation filter (2002-11-12),

14. 6478018 - Multi-peripheral perimeter sealed flat panel coalescing filter element (2002-11-12),

15. 6457553 - Low cost muffler (2002-10-01),

Company Overview

Nelson Industries, Inc., based in Stoughton, Wisconsin, specializes in fluid filtration technologies, focusing on the development and manufacturing of advanced filtration solutions. The company is recognized for its expertise in air filters, oil separators, and filter elements, catering to various industrial applications. Additionally, Nelson Industries innovates in acoustic attenuation and lubricant circulation systems, enhancing flow capacity and operational efficiency across multiple sectors, including automotive and industrial machinery.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

109 Patents

#1 in Stoughton, WI

#77 in Wisconsin

#3,509 in US

#7,231 in the World

Stoughton, WI, United States of America

Nelson Industries, Inc.

Forward Citations = 5,202

101 inventors:

Jeffrey S Morgan (20 out of 24 patents)

Kent Jeffrey Kallsen (15 out of 45 patents)

Larry J Eriksson (15 out of 20 patents)

4. Mark V Holzmann (12 out of 69 patents)

5. Stephen L Fallon (11 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nelson Industries, Inc.. Retrieved from https://idiyas.com/company/nelson-industries

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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