For the Inventor, By the Inventor

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Stoughton, WI, United States of America

Nelson Industries, Inc.

USPTO Granted Patents = 109

Trademarks = 4

Forward Citations = 5,065

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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 43 patents)

Larry J Eriksson (15 out of 20 patents)

4. Mark V Holzmann (12 out of 66 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 110 patents)

10. Christopher E Holm (7 out of 80 patents)

11. Brian W Schwandt (7 out of 69 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:

Air Filters

Fluid Filters

Muffler Technology

Filter Media

Oil Separators

Crankcase Ventilation

Acoustic Attenuation

Lubricant Circulation

Modular Filters

Cleanable Filters

Flow Capacity

Pressure Sensors

109 patents: Sort by Forward Citations

1. 6709575 - Extended life combination filter (2004-03-23),

2. 6641637 - Additional flow filter (2003-11-04),

3. 6627078 - Filter element cover grip (2003-09-30),

4. 6596043 - Air/oil separator tank with permanent drain layer (2003-07-22),

5. 6569219 - Air filter with serviceable filter media (2003-05-27),

6. 6568540 - Low force closure filter with integral seal (2003-05-27),

7. 6540046 - Compact economical spark arrestor and muffler (2003-04-01),

8. 6537339 - Moisture draining inside-out reverse flow air filter, mold and method (2003-03-25),

9. 6511599 - Multi-element cylindrical filter with equalized flow (2003-01-28),

10. 6482247 - Multi-panel fluid filter with equalized contaminant passages (2002-11-19),

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

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

13. 6478018 - Multi-peripheral perimeter sealed flat panel coalescing filter element (2002-11-12),

14. 6457553 - Low cost muffler (2002-10-01),

15. 6436162 - Twist and lock filter housing with anti-rotation stop (2002-08-20),

Nelson Industries, Inc. is a leading global provider of innovative industrial solutions. With over 50 years of experience, we specialize in manufacturing high-quality products for various industries including automotive, aerospace, and electronics. Our dedicated team of experts is committed to delivering superior engineering, precision manufacturing, and exceptional customer service. Visit our website to learn more about our extensive range of products and solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

109 Patents

#1 in Stoughton, WI

#75 in Wisconsin

#3,376 in US

#7,003 in the World

Stoughton, WI, United States of America

Nelson Industries, Inc.

Forward Citations = 5,065

101 inventors:

Jeffrey S Morgan (20 out of 24 patents)

Kent Jeffrey Kallsen (15 out of 43 patents)

Larry J Eriksson (15 out of 20 patents)

4. Mark V Holzmann (12 out of 66 patents)

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

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