% Expired Patents = 33.3

CIPO Patents = 3

Trademarks = 8

Forward Citations = 55

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7 inventors (with patents filed for the assignee):

Bill Grubba (2 out of 4 patents)

James Barnat (2 out of 4 patents)

Arlis Kadrmas (1 out of 9 patents)

4. Phillip B Blankenship (1 out of 10 patents)

5. Joseph Drbohlav, Iii (1 out of 3 patents)

6. Michael L Hines (1 out of 2 patents)

7. Todd Thomas (1 out of 4 patents)

8. James J Barnat (3 patents)

9. Tyrone Hannebaum (2 patents)

10. Thomas R Brown (13 patents)

11. Jeremy Heller (2 patents)

12. Harold Dabbs (2 patents)

13. Dan Wegman (1 patent)

14. Patrick C O'brien (0 patent)

6 patents: Sort by Forward Citations

1. 7550175 - Method for selecting an asphalt mixture for making an interlayer and method of making an interlayer (2009-06-23),

2. 7316520 - Low surface area shearing device (2008-01-08),

3. 7279035 - Method of selecting a binder for a chipsealing process based on its adhesion index (2007-10-09),

4. 7275890 - Cold in-place recycling of bituminous material (2007-10-02),

5. 7213446 - Method of selecting a bituminous emulsion based on its coalescence (2007-05-08),

6. 7108450 - Portable drag box with automated shearing device (2006-09-19),

Company Overview

Semmaterials, L.P. is a leading supplier of construction materials and services in the United States. With a focus on delivering high-quality products and exceptional customer service, Semmaterials serves a wide range of industries including construction, infrastructure, and transportation. The company's comprehensive product offerings include asphalt, aggregates, concrete, and pavement maintenance services. Semmaterials is committed to sustainability and innovation, continually exploring new technologies and processes to enhance their products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#88 in Tulsa, OK

#229 in Oklahoma

#44,981 in US

Tulsa, OK, United States of America

Semmaterials, L.p.

Forward Citations = 55

7 inventors:

Bill Grubba (2 out of 4 patents)

James Barnat (2 out of 4 patents)

Arlis Kadrmas (1 out of 9 patents)

4. Phillip B Blankenship (1 out of 10 patents)

5. Joseph Drbohlav, Iii (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Semmaterials, L.p.. Retrieved from https://idiyas.com/company/semmaterials

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]

3 patents (CIPO):

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]