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Muskegon, MI, United States of America

Nai Anchorlok Inc.

USPTO Granted Patents = 16

Trademarks = 1

Forward Citations = 166

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7 inventors (with patents filed for the assignee):

William C Pierce (12 out of 43 patents)

Steven M Stojic (6 out of 13 patents)

William J Hicks (3 out of 24 patents)

4. Raymond D Subdon (2 out of 2 patents)

5. John Pearson Smith (1 out of 11 patents)

6. Wiliam C Pierce (1 out of 2 patents)

7. John P Bowyer (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 5799564 - Spring brake actuator having two-ply pressure plate assembly (1998-09-01),

2. 5771774 - Spring brake actuator having plastic pressure plate assembly (1998-06-30),

3. 5725076 - Spring brake actuator and caging bolt therefor (1998-03-10),

4. 5722311 - Fluid-operated brake actuator with spring chamber isolation (1998-03-03),

5. 5713238 - Spring brake actuator with spring force measurement (1998-02-03),

6. 5664478 - Spring brake actuator with corrosion fuses (1997-09-09),

7. 5655431 - Spring brake actuator, caging bolt assembly therefor, and method of (1997-08-12),

8. 5649469 - Stroke indicator for an air-operated combination diaphragm spring brake (1997-07-22),

9. 5640893 - Spring brake actuator with guide and bearing for an actuator rod (1997-06-24),

10. 5526732 - Spring brake actuator and reaction plate anchor (1996-06-18),

11. 5460076 - Fluid-operated brake actuator with internal check valve (1995-10-24),

12. 5377579 - Fluid-operated spring brake atuator with funnel-shaped pressure plate (1995-01-03),

13. 5372059 - Fluid operated brake actuator with internal valve (1994-12-13),

14. 5353688 - Tamper-resistant brake actuator (1994-10-11),

15. 5345858 - Spring brake actuator with a pressure plate bearing for a caging tool (1994-09-13),

Nai Anchorlok Inc. is a leading manufacturer of industrial fastening systems, specializing in anchor bolts and locking devices. With over 50 years of experience, they provide high-quality products for various industries, including construction, automotive, and aerospace. Their commitment to innovation and customer satisfaction has earned them a reputation for reliability and performance.

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USPTO Data Jan 1 1976 - Dec 9 2025

16 Patents

#8 in Muskegon, MI

#696 in Michigan

#19,271 in US

#36,634 in the World

Muskegon, MI, United States of America

Nai Anchorlok Inc.

Forward Citations = 166

7 inventors:

William C Pierce (12 out of 43 patents)

Steven M Stojic (6 out of 13 patents)

William J Hicks (3 out of 24 patents)

4. Raymond D Subdon (2 out of 2 patents)

5. John Pearson Smith (1 out of 11 patents)

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