Forward Citations = 236

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2 inventors (with patents filed for the assignee):

Charles D Black (4 out of 19 patents)

Wesley F Black (2 out of 11 patents)

4 patents: Sort by Forward Citations

1. 6481583 - Tool holder system (2002-11-19),

2. 6286777 - Extension cord storage and dispensing system (2001-09-11),

3. 6142405 - Extension cord storage and dispensing system (2000-11-07),

4. 5566934 - Baseball trainer (1996-10-22),

Stringliner Company is a leading manufacturer of construction and marking tools, specializing in high-quality, durable string lines. With a wide range of products including chalk lines, masonry twine, and replacement reels, Stringliner is trusted by professionals for accurate and reliable marking on job sites across the globe.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

4 Patents

#1 in Williston, MD

#873 in Maryland

#59,122 in US

Williston, MD, United States of America

Stringliner Company

Forward Citations = 236

2 inventors:

Charles D Black (4 out of 19 patents)

Wesley F Black (2 out of 11 patents)

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