% Expired Patents = 40.0

Trademarks = 17

Forward Citations = 51

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2 inventors (with patents filed for the assignee):

Michael Gates Kinnaird (5 out of 12 patents)

David Linith Rigsbee (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 7828902 - Sodium-free, lithium-containing concrete cleaning compositions and method for use thereof (2010-11-09),

2. 6623554 - Protective coating compositions containing natural-origin materials, and method of use thereof (2003-09-23),

3. 6589595 - Method and apparatus for preventing asphalt from sticking to paving equipment (2003-07-08),

4. 6126757 - Method of releasing asphalt from equipment using surfactant solutions (2000-10-03),

5. 5720825 - Method of cleaning tar and asphalt off of paving or other equipment (1998-02-24),

Company Overview

Chemtek, Incorporated is a leading provider of specialty chemicals and solutions for various industries. With over 20 years of experience, we offer a wide range of high-quality products and services to our customers. Our dedicated team of experts is committed to delivering innovative solutions that meet the unique needs of each client. Contact us today to learn more about how Chemtek can help you achieve your goals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#1 in Yanceyville, NC

#1,123 in North Carolina

#51,620 in US

Yanceyville, NC, United States of America

Chemtek, Incorporated

Forward Citations = 51

2 inventors:

Michael Gates Kinnaird (5 out of 12 patents)

David Linith Rigsbee (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chemtek, Incorporated. Retrieved from https://idiyas.com/company/chemtek

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]