For the Inventor, By the Inventor

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Montgomery, IL, United States of America

Zeftek, Inc.

USPTO Granted Patents = 41

CIPO Patents = 1

Trademarks = 3

Forward Citations = 629

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9 inventors (with patents filed for the assignee):

Michael K Burke (25 out of 54 patents)

John D Anderson (22 out of 83 patents)

Walter J Peach (13 out of 68 patents)

4. Richard F Murphy (9 out of 23 patents)

5. Walter J Peach, Jr (6 out of 7 patents)

6. Michael K Murphy (4 out of 10 patents)

7. Daniel L Hart (3 out of 3 patents)

8. W Matthew Tonn (1 out of 1 patent)

9. Jake C Pedersen (1 out of 1 patent)

Core Competencies:

Freight Railroad Car Reflector

Supplemental Restraint System

Beam Isolator

Railroad Car Brake Beam

Greaseless Door Lock

Auto Rack Bumper Guard

Cushioned Brake Beam

Vent-On-Demand Hatch Cover

Railroad Car Sensing System

Plastic Knuckle Pin

Gap Closing Device

Segmented Sliding Sill Wear Plate

41 patents: Sort by Forward Citations

1. 7571685 - Freight railroad car reflector (2009-08-11),

2. D541700 - Freight railroad car reflector (2007-05-01),

3. D541193 - Freight railroad car reflector (2007-04-24),

4. 7150592 - Supplemental restraint for auto-rack railroad car restraint system (2006-12-19),

5. 7128508 - Supplemental restraint for auto-rack railroad car restraint system (2006-10-31),

6. 7004696 - Supplemental restraint for auto-rack railroad car restraint system (2006-02-28),

7. 6964233 - Beam isolator (2005-11-15),

8. 6926480 - Supplemental restraint for auto-rack railroad car restraint system (2005-08-09),

9. D497838 - Railroad car brake beam wear plate having one or more tapered walls (2004-11-03),

10. 6792874 - Railroad car center plate assembly conductive liner (2004-09-21),

11. 6786160 - Beam isolator (2004-09-07),

12. 6708625 - Greaseless door lock (2004-03-23),

13. 6561740 - Auto rack railroad car panel bumper guard (2003-05-13),

14. 6553917 - Auto rack railroad car bumper guard device (2003-04-29),

15. 6527311 - Door lock for a railroad car (2003-03-04),

ZefTek, Inc. is a technology solutions company specializing in software development, web design, and digital marketing. With a team of experienced professionals, we provide innovative and customized solutions to help businesses achieve their goals. Our expertise ranges from building user-friendly websites to developing scalable software applications. Visit our website to learn more about our services and how we can assist you in leveraging technology for your success.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

41 Patents

#2 in Montgomery, IL

#451 in Illinois

#8,169 in US

#16,222 in the World

Montgomery, IL, United States of America

Zeftek, Inc.

Forward Citations = 629

9 inventors:

Michael K Burke (25 out of 54 patents)

John D Anderson (22 out of 83 patents)

Walter J Peach (13 out of 68 patents)

4. Richard F Murphy (9 out of 23 patents)

5. Walter J Peach, Jr (6 out of 7 patents)

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