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For the Inventor, By the Inventor

Salt Lake City, UT, United States of America

Roman Cement, LLC


USPTO Granted Patents = 27



Trademarks = 3

Forward Citations = 355

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2 inventors (with patents filed for the assignee):

goldMedal John M Guynn (27 out of 38 patents)

silverMedal Andrew S Hansen (12 out of 46 patents)


27 patents:

1. 12435000 - Compositions and methods for making blended supplementary cementitious materials (2025-10-07),
2. 12428353 - Classification and recombination of different SCM and cement fractions to efficiently manufacture cement-SCM compositions (2025-09-30),
3. 12151974 - Use of mineral fines to reduce clinker content of cementitious compositions (2024-11-26),
4. 11746048 - Cement-SCM compositions and methods and systems for their manufacture (2023-09-05),
5. 11655186 - Activitation of natural pozzolans (2023-05-23),
6. RE49415 - Particle packed cement-SCM blends (2023-02-13),
7. 11472737 - Process for improving fly ash quality, improved fly ash, and cementitious compositions containing improved fly ash (2022-10-18),
8. 11168029 - Use of mineral fines to reduce clinker content of cementitious compositions (2021-11-09),
9. 10968137 - Process for beneficiating fly ash, beneficiated fly ash, and cementitious compositions containing beneficiated fly ash (2021-04-06),
10. 10737980 - Use of mineral fines to reduce clinker content of cementitious compositions (2020-08-11),
11. 10730805 - Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions (2020-08-04),
12. 10526248 - White cementitious compositions (2020-01-07),
13. 10494298 - Cement-SCM compositions and methods and systems for their manufacture (2019-12-03),
14. 10233116 - Activitation of natural pozzolans (2019-03-19),
15. 10131575 - Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions (2018-11-20),
Roman Cement, LLC is a leading manufacturer and supplier of high-quality cement products. With an extensive portfolio of cement-based solutions, we cater to various industries worldwide. Our commitment to innovation, sustainability, and excellence sets us apart. Visit our website for more information on our products and services.
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USPTO Data Jan 1 1976 - Jan 13 2026

27 Patents

#61 in Salt Lake City, UT

#141 in Utah

#12,025 in US

#23,332 in the World

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Salt Lake City, UT, United States of America

Roman Cement, LLC

Forward Citations = 355

2 inventors:

goldMedal John M Guynn (27 out of 38 patents)

silverMedal Andrew S Hansen (12 out of 46 patents)

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