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For the Inventor, By the Inventor

Caledonia, MI, United States of America

Steffens Enterprises, Inc.


USPTO Granted Patents = 21


Trademarks = 6

Forward Citations = 495

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11 inventors (with patents filed for the assignee):

goldMedal Charles J Steffens (15 out of 18 patents)

silverMedal Scott P Crossman (6 out of 40 patents)

bronzeMedal Craig Charles Mulder (4 out of 8 patents)

4.  John Kooiker (3 out of 3 patents)

5.  Douglas C Steffens (2 out of 3 patents)

6.  Mark J Heintskill (2 out of 3 patents)

7.  Roger L Erickson (2 out of 2 patents)

8.  James P Sheeran (2 out of 2 patents)

9.  Lynne F Hunter (1 out of 64 patents)

10.  John Michael Arend (1 out of 6 patents)

11.  Chuck J Steffens (1 out of 1 patent)


21 patents:

1. 9669689 - Folding cargo bay cover for pickup truck (2017-06-06),
2. 8205844 - Connector assembly (2012-06-26),
3. D645630 - Computer cart (2011-09-20),
4. D637782 - Computer cart (2011-05-10),
5. 7735881 - Folding cargo bay cover for pickup truck (2010-06-15),
6. D612561 - Computer cart (2010-03-23),
7. 7380806 - Vehicle step tube (2008-06-03),
8. 7334807 - Vehicle step tube (2008-02-26),
9. 7195299 - Cargo compartment organizer (2007-03-27),
10. 7168721 - Vehicle step tube (2007-01-30),
11. 7052071 - Cover and latch for vehicle cargo bed with tailgate (2006-05-30),
12. 7036861 - Cargo compartment organizer (2006-05-02),
13. 6565141 - Folding cargo bay cover for pickup truck (2003-05-20),
14. 6527330 - Folding cargo bay cover for pickup truck (2003-03-04),
15. 6520559 - Folding cargo bay cover for pickup truck (2003-02-18),
Steffens Enterprises, Inc. is a leading provider of innovative solutions in the technology industry. With over 20 years of experience, we specialize in developing and delivering cutting-edge software products and services to meet the evolving needs of our clients. Our team of dedicated professionals is committed to delivering exceptional quality and customer satisfaction. Visit our website to learn more about our comprehensive range of technology solutions and how we can help your business thrive.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

21 Patents

#3 in Caledonia, MI

#558 in Michigan

#15,142 in US

#29,009 in the World

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Caledonia, MI, United States of America

Steffens Enterprises, Inc.

Forward Citations = 495

11 inventors:

goldMedal Charles J Steffens (15 out of 18 patents)

silverMedal Scott P Crossman (6 out of 40 patents)

bronzeMedal Craig Charles Mulder (4 out of 8 patents)

4.  John Kooiker (3 out of 3 patents)

5.  Douglas C Steffens (2 out of 3 patents)

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