Trademarks = 4

Forward Citations = 53

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6 inventors (with patents filed for the assignee):

Steven C Simpson (2 out of 2 patents)

Warren W Weible (2 out of 9 patents)

Warren A Brackmann (1 out of 53 patents)

4. Christophe Petit (1 out of 1 patent)

5. Timothy T Herrick (1 out of 1 patent)

6. Tow Pin Liew (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 7331262 - Drive bit holder and method of manufacturing (2008-02-19),

2. 5001948 - Screwdriver blade with curved tip (1991-03-26),

3. 4972853 - Cigarette filter rod elements and cigarettes incorporating such filter (1990-11-27),

4. 4878406 - Screwdriver blade (1989-11-07),

SK Hand Tool Corporation is a leading provider of high-quality professional hand tools. With over 100 years of experience, they offer a wide range of products including sockets, wrenches, and screwdrivers. Their tools are known for their durability, precision, and reliability, making them a preferred choice among mechanics and DIY enthusiasts worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

4 Patents

#3 in McCook, IL

#2,759 in Illinois

#58,988 in US

McCook, IL, United States of America

Sk Hand Tool Corporation